I can get one used for £300, which is really cheap. It's from a reputable dealer and they say its in good condition.

Anyone used one before?

What sort of sounds can I expect?

I don't have the opportunity to try it before I buy it.

Epiphone Elitist SG (Serious)
Tokai Silver Star
Epiphone Dot
Epiphone Les Paul
Washburn J28SCEDL
Washburn J12S

G.A.S List

JCM600 (Yes a 600..)