I used to gig a reissue that was made in 2004..it was a GREAT amp, I put better valves in mine (KT66) and it came alive.. LOADS of bottom end.
I think they are a pure rock and roll amp, I played flat out and using my guitar to control the cleaness, I sold mine becasue I wanted more of a clean tone and this amp broke up to early!
Here is a clip I did a while back before I sold the amp
YouTube - Marshall Bluesbreaker with nos KT66