I purchased a GP510 from a local piano store in 2021. It has been my main piano since for playing classical and jazz music at home. The action and wooden keys are great and feel significantly better than other digital I have tried. I'd even say I prefer the action to a lot of similarly priced uprights. The sound is beautiful, spacious, and can go quite loud at 100 watts. It has plenty of outputs to record or use as a midi controller. It looks very nice and I like that it has a lid which can direct the sound. I did find the tones on the bright side when I got the piano. This can be adjusted in the menus. There was also an odd vibration coming from a panel just above the keyed. I reported it to Casio and they sent a tech to address the issue. The piano key tops are slightly higher than on a grand piano or most uprights. I like that for my own practice at home. I like the pedals on this piano. I do hope that Casio will update the design of the stand so the pedals are like on a grand with no wood panel behind them. They have that design on the privia psx7000. Maybe they'll do something like that when they update the hybrid grands. The bench with this instrument is okay. Like most "artist" benches, it allows for raising the bench higher than a standard wooden bench height, but doesn't really allow you to adjust below that height. As a very tall pianist, I prefer to sit lower. Overall, I really like this instrument. Particularly, I like the keys and sounds. I wish Casio would make a pro stage model with this same action. I'd buy that in a heartbeat.