I use Guitar port exclusively for recording. I have been pleased with the results. The guitar amp modeling is decent but, I like the bass amp modeling a little better. Some of the guitar amps sound pretty good, some I don't care for, for example the "58 tweed B-man" is supposed to sound like a 59 Fender Bassman. I own a 59 fender bassman and the software amp model doesn't do the original any justice. I did add the fx and bass packs and have not regretted the additional purchase. The bass pack is very useful.