I used to have the UX2, it was okay, not the best, but usable. I've heard people on this forum post songs using their UX1 or UX2, and their mixes sounded amazing. The UX2 (im sure is the same with the UX1) has a 1M OHM instrument impedance which is all you really need for guitars. Work with what you got, and also, if you are just dicking around, having fun with recording/mixing for your own band I think the UX1 or UX2 is fine. But if you're working with clients or want to progress as a AE then upgrade.