They get a thumbs up from me! I don't think you will be disapointed if you bought one. You can get some pretty convincing warm tones from that unit and is very quiet in operation. I actually prefer it to the Line6 POD XT which is it's main rival. It is very easy to use and takes no time at all to get a great sounding tone from it. I haven't used one direct into a desk yet, so I can't really comment on the cab and amp modellers, but the basic dry settings are really nice. The first time I used one was with a Squier P-bass (they don't sell any impressive basses at this store!) and I was really impressed by the instant hi-fi quality. The effects on it are not too great (a bit synthetic sounding)...for that I would get the Line6 XT.
