The SLO is a very nice amp but its shortfalls were just too much for me. The problems I had were mainly with the loop. When using the loop bad things happened. First, the tone took a hit with touch sensitivity. I have heard all of the solutions and reasons for a poorly made loop (all loops color the tone, don't use the loop, you have to set it up right, etc...) Second the levels were just too hot, I know, use an intellifex or G-Major. I tried the G-Major and it did not help any. It still killed a bit of touch sensitivity and tone. Third, it had too little bottom end. I know, get the depth mod done and use a 4X12. Right?!? Buy expensive amps then pay for mods to cover up the shortcoming. Fourth, there is a volume disparity when using the loop. The lead was much louder than the clean. Fifth, when using the loop when you changed channels there was delay and volume swell when going from lead to clean. How can you play live with this??? After 15 years of history the SLO should be more refined. For the 3K price tag all of the mods should be standard. The clean is just ok. Good enough for rock. This could be a great amp, but it is really a one trick pony. The Peavey 5150 is just as good and $2300 less. IMO!