I got a super OD a while ago, and sold it almost a week after on ebay for more than i paid for it
To be honest, IMO, they aren't upto anything much. They just sound very very dry and suck out any kind of tone you have (this was going into a marshall dsl). If you're after a solo boost, (which is what i wanted it for), then go for an MXR micro-amp. Just so much simpler and doesn't weather your sound as much. Better still, make one. the circuit is dead simple and would cost nowhere near as much as buying one!