I've had my PX-350 for three months. Previously, I had the PX-330. I play professionally on a Yamaha PSR-S950 arranger keyboard. I can't get over how superb the Concert Grand piano sound is on the PX-350. Through headphones and my Logitech speakers (If you're on a budget, I highly recommend finding some used Z-2300 on Ebay). Really expressive. It's like owning a grand piano. Some of the electric pianos sound really good too. I can't believe how good the feel of the keys are and the action. It's amazing how much satisfaction this board provides me for less than $1000 with pedalboard and outboard speakers. Really like that I can plug my iPad player into the keyboard and that I can record audio directly onto a USB drive.