I've had one for about a 2wks now. So here's my impression(I have quite a lot of experience with DAPs, including AK240, DX90, DX50, X3, and ZX1). IMO, it's an upgrade over the AK100(which I used to have, RWAK100, actually) It's definitely a good move for AK to improve it's product line and lower the price. Is it worth the full price in terms of SQ? No. It's in between DX50 and DX90, or X3 and X5. TBH, but costs more than all of them. Though does it sound good? **** yeah. It has a fairly typical AK tuning(slightly warm), low noise(X3 and DX50 has some issues with noise), and decent power, especially for a device this size. However, the firmware is still bit laggy, and battery life isn't terribly attractive. I honestly bought it because I couldn't handle carrying a brick with me, and didn't have money to buy the ZX2.