Hi.
I have had a BG500 2x10 for a few years now...
There is a thread on here if you search!
Mines been fine, a few of the memory buttons have popped out but that's all that's gone wrong.
It's pretty loud. Imo the speakers let it down a bit, it sounds good through the DI and headphone socket and when not pushed it has a fair bit of punch and tightness, but once you start to push the amp the 210's start to lose some focus and that's really why I use something else nowadays.
I still use it at home as a practice amp and standby should I need it. The 115 might be a bit different. All in all not bad for a budget amp.. depends what your looking for. I wouldn't sell mine, it' one of the best headphone/mp3 amps I have played through.