Hey Jackal!
I have not personally played this amp but I really like the youtube clips of it. It really does a good job. The-Tone-King (guy on youtube) does some really good demonstrations of the RM100.
Check out his RM100 vs JCM800 video
http://www.youtube.com/watch?v=lUh3g...e=channel_page
And if you want to see more of his Randall videos, check him out on youtube.
http://www.youtube.com/user/lmsjr