I bought the 120 watt model and Sanpera II model for crimbo and its an amazing amp, my guitar playing increased tenfold after a few days and the choice of amps ensures you will find your ideal practice tone, i haven't used the interface yet cause I use amp sims and as to date I've heard never update past 1.55 otherwise your amp will become unstable, the new updates are only in the beta versions and their causing problem galore on the peavey forums,
all new vypyrs will be version 1.55 anyway so you don't need to worry.