I've got the same amp. I also was a little disappointed initially because I was getting quite a bit of hum and buzz even on clean at very low volume. The solution is to use the noise suppression feature in the Boss Tone Studio. Take a look at this page if you're curious about it. This amp will do far more than what I'm capable of right now but it has enough room to grow that I won't feel constrained by it for a long time - possibly never!
It takes as long as it takes unless you quit - then it takes forever and you will never get there.
