From someone who owns a mini, if there was a Dual or even a triple, perfect condition availavle used for the same price, I would not have purchased it. While it may be much more of an amp, it was not was I was looking for. The issues for me were:
Size...tone (the EL84s do sound different)...and being able to get a great tone without my ears bleeding. Even with the Duals 50 watt setting it too much. I hardly ever take my mini out of 10W mode.
Different strokes for different folks.
For a point of refference, I was at the local music store and played one of the highly praised Jimi Hendrix heads on a 4x12. Hated it. A master volume master piece that only sounds good cranked. If someone gave it to me I would sell it, buy a mini recto, a good 2x12 or 1x12, and a killer Les Paul custom....