i've had many different pods over the years.. stuck now with a pocket pod.. and first things first. if you're looking for amazing tone, dont bother. yes you can tweak it on the computer for hours on end, but in the end everything'll sound the same to you anyway.
i usually play on the presets that are in the pod and even then it's like playing a generic nu metal recording..
that aside, for demos, late night and apartment recording it's great cos it's got the same tone across the volume range (give or take bass due to air displacement, which you dont get with having stuff on very silent).
really depends on how you use it and for what you use it. for recording (if you havent got microphones and all that jazz) it's good. be prepared to tweak it. for silent practice and home use, cant beat it with anything that has a speaker IMO.
but do get something that has a computer interface, it will make tweaking a LOT easier