Yeah, I use that same unit Vamp2 and I recommend using good cables. Buy two good cables.. ($30-35 per)... use one to go into the input of your recording device, and the other for the guitar. This will help keep things quiet, because the unit is sometimes noisy... not too much... but you can tweak the noise with the onboard suppressor. Also, watch your levels to make sure you don't get clipping... for some damn reason, the Vamp2 always sets itself too damn loud when I switch patches!!!
I get great sounds out of the unit. I also recommend backing off the gain for backing tracks... unless you need it for the song. I've got the Vamp2 for bass, and it is also a great unit.