After spending the last month trying out the LS, LSs, Stiletto,Roadster, and Road king I, I pulled the trigger on a Mark IV combo. The MKIV really knocked me out tone wise. the only other Mesa that came close, was the LS. The clarity of the MKIV is fantastic and I'm a real sucker for that Santana lead sound. Tried to love the Roadster, but only really liked the 1st channel. If the roadster had more of the 1st channel in the other channels I would be in love. When I started my quest, I was not even considering the MKIV. I just plugged in, out of curiosity. Great amp for me.