I also use a Bst SA 300. I use it for my rehearsals with my local connected baffles Musically Your P 1065 and those range above.
The amp is fairly old (I would say between 5 and 10 years) and emits crackling sometimes when I turn the volume knobs. However, it is nothing really disturbing.
I like the comparison Bst, 300W amp, and I think that despite all the MV 300 is done in the 250W rather than 300W, even cranked. However, for my use it does not bother me the slightest in the world.
The LEDs that do not go slowly, to make it clear when you can finally remove all the gear.
The strength of the gear is made to last and is not ready to let go of me!
January 2011 Edit: I found him a very handy feature: even plugged the speakers low end, there was virtually no feedback problems above, MV on my speakers was nothing even approaching the microphone (an SM58) which I think that it is possible to have sound with a Static with without taking too much risk. In short, a pleasure to use on instruments that need transplanting mics, if I get a chance, I'll buy another, he kills this amp.
The TSB, for example him, is much more powerful, but even at low power feedback, I keep it for synths and bass.
The weight, parcqu'il gear is heavy, but hey, that's a detail.
Value for money: I purchased 250 € Used with 2 speakers for your musically a max of 400W/4ohm therefore value for money is very good.
Knowing what you know now, would you make the same choice?
If ever I fell on the same occasion, yes.