Feature:
It has the standard requirements: pitch shift (+/- 10% ), 33/45 rpm, keeps the bpm right, etc. The torque is a bit weak but one gets used to it quickly. What's really important here, if you wanna use it for scratching, is to buy a pair of really good slipmats. That will counter-effect the weak torque. Try the DSM-9F from Stanton, very low friction.
Sound:
It has a good sound. The stylus and the mixer matter much more to the sound. So, choose a Shure M44-7 and a decent mixer and it sounds great.
Ease of Use:
It's robust and easy to use.