While I don't use it myself, I have seen plenty of people using it, and often stores used to have it on display running CSP. Just make sure you do the firmware updates for improved audio decoding, and consider purchasing WIN-96 for rebanding support (not to mention it is pretty good software).
The audio will come in a little choppy at times, but that is a result of the CSP system's simulcast sites occasionally falling out of sync by a little (well that is what is claimed). This is a system problem - pretty much any of the digital scanners out now will have this problem, so it is not a scanner problem specific to this model, but it shouldn't affect you from being able to hear what is going on.
They are good value too considering most are NOS or lightly used units for sometimes half the price of a brand new digital trunking scanner.