Electro-Harmonix Holy GrailFrom real comments

Verdict distilled from 35 mentions across 12 aspects in comments under product review videos.

Positive sentiment71%
PROS 71%
CONS 29%

Rank based on 35 mentions across 12 aspects

View the verdict as

Buy this if...

  • You want a simple, always-on spring reverb for gigging
  • You prefer the Neo's Plate mode over the flanger-like flerb
  • You need a small-footprint true bypass reverb for your board

What users love

Skip this if...

  • You need low current draw and are eyeing the power-hungry Plus
  • You dislike the flerb and can't find a Neo/plate variant
  • You plan to push the wet level high without an effects loop, risking volume/noise issues

What users complain about

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Based on user comments

Best choice
1Mid
Mad Professor Fire Red Fuzz
Articulate soundGreat with extended-range guitarsStrong overall tone qualityPrice concerns
Mad Professor Fire Red Fuzz
Articulate sound
Great with extended-range guitars
Strong overall tone quality
Price concerns
2Premium
Mad Professor Deep Blue Delay
Musical analog toneLong-term reliability and board loyaltySimple, intuitive controlsHigh price pointCheaper alternatives seen as comparableDistortion at high settings
Mad Professor Deep Blue Delay
Musical analog tone
Long-term reliability and board loyalty
Simple, intuitive controls
High price point
Cheaper alternatives seen as comparable
Distortion at high settings
3Premium
Mad Professor Sweet Honey Overdrive
Touch-sensitive dynamicsLong-term favorite / durability of appealSweet, low-gain tone qualityHigh price versus clonesDeluxe loses some original characterLimited mid control
Mad Professor Sweet Honey Overdrive
Touch-sensitive dynamics
Long-term favorite / durability of appeal
Sweet, low-gain tone quality
High price versus clones
Deluxe loses some original character
Limited mid control
Best value
4Mid
MXR Super Badass Distortion
Exceptional versatilityNatural, amp-like tonePowerful 3-band EQDemo videos undersell the pedalNoticeable noise floorVolume drop when engaged
MXR Super Badass Distortion
Exceptional versatility
Natural, amp-like tone
Powerful 3-band EQ
Demo videos undersell the pedal
Noticeable noise floor
Volume drop when engaged
5Premium
Eventide Orville
Exceptional reverb qualityHigh-quality warm pitch shiftingStrong aspirational appealHigh priceCheaper alternatives may sufficeEffect can feel like it plays for you
Eventide Orville
Exceptional reverb quality
High-quality warm pitch shifting
Strong aspirational appeal
High price
Cheaper alternatives may suffice
Effect can feel like it plays for you
6Premium
Origin Effects Deluxe61
Authentic amp-like toneExcellent low-to-mid gain driveUnderrated favorite among ownersHigh price pointLimited gain-staging flexibilityNo built-in reverb
Origin Effects Deluxe61
Authentic amp-like tone
Excellent low-to-mid gain drive
Underrated favorite among owners
High price point
Limited gain-staging flexibility
No built-in reverb
7Premium
Roland TR-808
Iconic, powerful kick drumWarmer, more alive analog characterCultural and historical influenceExtremely high collector priceAnalog noise and static requiring EQReliability concerns of aging hardware
Roland TR-808
Iconic, powerful kick drum
Warmer, more alive analog character
Cultural and historical influence
Extremely high collector price
Analog noise and static requiring EQ
Reliability concerns of aging hardware
8Premium
Moog Subsequent 37
Inspiring and addictive to playWarm, fat analog toneStrong DAW/VST editor integrationHigh price for what it offersLimited versatility outside bass rangeNeeds effects/partner gear to shine
Moog Subsequent 37
Inspiring and addictive to play
Warm, fat analog tone
Strong DAW/VST editor integration
High price for what it offers
Limited versatility outside bass range
Needs effects/partner gear to shine
9
Wampler Tumnus V2
Klon Centaur-style toneConvincing demo influenced purchaseExcellent clean boostNot suited for metal tones
Wampler Tumnus V2
Klon Centaur-style tone
Convincing demo influenced purchase
Excellent clean boost
Not suited for metal tones
10Mid
Wampler Paisley Drive
Transparent toneVersatile across genresWorks well across many guitar typesTwo-channel routing complexityDry signal bleed-throughInconsistent demo impressions
Wampler Paisley Drive
Transparent tone
Versatile across genres
Works well across many guitar types
Two-channel routing complexity
Dry signal bleed-through
Inconsistent demo impressions
You are here
31Mid
Electro-Harmonix Holy Grail
Excellent spring reverb tonePraised Plate reverb modeDurable, long-lasting buildDivisive flerb effectConfusing product lineupNoise/hiss concerns
Electro-Harmonix Holy Grail
Excellent spring reverb tone
Praised Plate reverb mode
Durable, long-lasting build
Divisive flerb effect
Confusing product lineup
Noise/hiss concerns

Who wins on what

Ranked by what users actually praise

Overall Impression

The core spring and hall reverb sounds are consistently praised as some of the best in the pedal's category. Multiple long-term owners (15-20+ years) say it's their favorite reverb, comparing it favorably to boutique spring tanks and amp-built-in reverb. Gigging musicians replaced noisy Fender spring units with it, praising the spring setting from 10 to full. Others say it comes very close to a beloved Ampeg VT40 spring tone, and one called it 'the best simple reverb' they've owned and used across guitar and bass.

The 'flerb' mode is a persistent point of disagreement among users. Several commenters expected something exotic but found flerb sounds essentially like a flanger, and some bandmates reportedly hate it. Others say a little goes a long way and enjoy it for 80s-style leads. Multiple buyers specifically chose the Neo or other variants because they swap flerb for a Plate reverb, which is repeatedly called more useful and impressive, with one comparing it to a Lexicon-style rack unit.

A few practical quirks show up in real-world use: volume drop, treble loss, and lineup confusion. Some users report the pedal cuts significant volume once the reverb knob passes noon, calling it a pain live, though others using lower settings notice no such issue. One user reports spring mode cuts treble, requiring amp EQ compensation. Buyers also struggle to distinguish between Nano, Plus, Neo, Max and Cathedral variants, and one found the Plus draws too much current for a standard pedalboard power supply.

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