Electro-Harmonix Holy Grail Neochat_bubble_outlineFrom real comments

The plate reverb is the pedal's clear highlight. Commenters repeatedly single out the plate mode as reason enough to buy the Neo, describing it as massive, lush, and comparable to expensive rack units or Lexicon-style reverbs. Several users say they never appreciated plate reverb until trying this pedal, and multiple buyers explicitly chose the Neo over the Nano because it includes plate instead of flerb. Even Cathedral owners note the Neo captures similar plate quality in a smaller footprint.

Spring and hall modes also earn praise, though opinions vary. Some users prefer the spring setting overall, calling it more pleasing than hall despite hall getting talked about often, and one commenter says the spring mode sounds like a real amp spring tank. Another calls it one of the most decent faux-spring sounds in a cheap compact pedal, beating pricier dedicated spring-sim units. However, one long-time Nano owner felt the Nano's spring reverb was actually better than the Neo's.

The control knob's sensitivity is a recurring point of discussion. Multiple users note the wet level is very high even at low knob settings, comparing it unfavorably to the Nano or an amp's built-in spring tank, and one describes reaching full wetness even with the knob nearly closed. A mod video's audience discusses adjusting this taper, though one commenter reports the mod didn't help their unit. Others mention occasional crackling when turning up the reverb knob, raising powering concerns.