Pros Great clean bass; perfect treble; not overpowering in midrange, which is what most of these players suffer from.
I have compared the sound of this unit to most others currently on the market and I haven't found a better one for under $800.
Cons -no recharg. battery pack, nor bluetooth;
-when you DO use D-cells, they last 3-4 hrs;
-the remote looks cool but REALLY sucks: very hard to navigate;
-buttons have no markings: they give you "stickers" to install, but.. c'mon! I'm not 5 years old !
Summary I've owned (or currently own) Logitech, Creative ZiiSound DX3, two Bose SoundDock units, Sony, Philips and iHome models. But my favorite until now is my Altec Lansing model 725. It is half the price of this H-K AND has rechargeable battery, streaming from iPhone or computer via Bluetooth OR included dongle, nice little easy-to-use remote that stows in back, and looks quite modern.
It sounds great when streaming iTunes or internet radio or anything.
BUT ... you cannot beat the sound of the H-K Go + Play 2. Not really even close to any of the others.
So if best quality sound is what you're after, you'll somehow learn to live with its many limitations (including a rather steep price for a unit without streaming or battery pack). I just hope you won't have to use the chinzy remote very often.