Casio Celviano Grand Hybrid GP-310chat_bubble_outlineFrom real comments

The GP-310 offers strong value against pricier rivals. Commenters position the GP-310 as an exceptional value proposition, with one reviewer calling it a 'Kawai Killer' that nothing else in its price range can match, noting that Yamaha's Avantgrand alternatives start at roughly twice the cost. Another buyer credits Casio with listening to community feedback from the earlier GP-500 model and reviews, resulting in what they describe simply as a great instrument. Even a frustrated shopper acknowledged researching for a month and nearly purchasing based on many positive reviews, mostly from music stores, before a feature gap changed his mind.

Missing preset-save functionality is a dealbreaker for some buyers. A prospective buyer who researched for a month nearly bought the GP-310 on the strength of glowing reviews, mostly from music stores, but discovered it cannot save custom presets such as layered piano-and-strings, bass-and-piano, or bass-and-rhodes combinations. He calls this a serious mistake from Casio, pointing out that even $300 to $500 digital pianos allow preset recording, and objects to needing the $6,300 GP-510 just to unlock that option. He hopes for a firmware update but doubts one will come, and says he will keep looking elsewhere.

Headphone listening quality disappointed at least one user. One owner reported a poor experience using headphones with the GP-310, trying both AKG and Sennheiser flat headphones and finding the sound quality lacking through both. He noted needing to push the volume control almost to maximum just to get audible sound, an unusual complaint for a piano at this price point. He asked fellow commenters for suggestions on how to achieve better sound through headphones.