The downsides:
The 4X10 is heavy.
The overdrive channel isn't the best, although, with the right setup, it can give you a creamy bluesy lead tone.
The volume is tricky, it goes from 'not loud enough' to 'loud' to 'too loud'.
The good things:
It's loud enough for medium sized venues.
It works great with pedals. Depending on the pedal it can go from classic to modern hi gain.
It's very, very reliable.
Good clean bassman-like tone (not too clean).
Excellent reverb
Two speaker outputs so you can add a cab.