I can't compare the two, but the Tremoverb is a great amp. One of the best Mesa's I've owned. I've owned a Rectoverb and also a Mark IV and I prefer the Tremoverb above both of them. The tremoverb does hard rock, blues on steroids, and metal tones with eas. It's a recto sound, but fatter, smoother, and less buzzy. You can dial it in wrong if you max the gain and cut all the mids. The blues mode of the amp is very versatile for everything from a pushed fender Blackface on steroids to hard rock. The modern mode can, of course, do metal.