A JCM 2000 was my first tube amp and I remember my friends liking it more than their JCM900.
I had so little concept of tone back then, just cranked all the knobs. Kinda want to get one again just to have a better understanding of it.
Mine was the one with circuit issues and my local tech "fixed" it and it died 2 weeks later which I then promptly lost in a move.