Does this do more than just Marshall style stuff? The build quality looks exceptional and the clips / vids from the pro's on the website are truely off the hook. How well does the FX loop sound? Anyone using line level FX through the loop? Please let me know, I'm very interested. In particular, people mention it's not exactly like a "normal" EL84 tone or a Marshall tone -- how so? Is the power scaling solid even at very low levels? Thanks! I'm researching as I go <three different TGP windows open hahaha!