Yamaha DGX-670chat_bubble_outlineFrom real comments

Sound quality and piano tone are the standout strengths. Commenters repeatedly single out the CFX grand piano sample, VRM resonance modeling, and ported speaker enclosures as delivering a richer, more acoustic-like tone than rivals like the FP-30X, Casio PX-S1100, or Korg XE20. Several long-time players with decades of experience across acoustic and digital pianos called it the best digital piano sound they've heard, with good bass response and detail from the internal tweeter.

The arranger and accompaniment features are a major draw for hobbyists. Many buyers describe the auto-accompaniment styles, Bluetooth audio, and 16-track sequencer as transformative, making solo practice feel like playing with a full band. Reviewers cite downloadable custom styles, Adaptive Style mood-matching, and realistic instrument voices like guitar and pedal steel as reasons the instrument stays engaging long after purchase.

Complexity and a few hardware omissions are the main frustrations. Several users find the deep menu system and registration-saving workflow confusing, wishing for clearer documentation or a song book. Others note the lack of true quarter-inch line outs, no voice expansion capability, missing organ flutes, and a heavy cabinet that makes transport difficult, though one owner argued the added weight improves keybed feel and reduces thump noise.