I got my Streamliner 900 several years ago. (I've posted the pic of the night I got it, with the SL 900 on the kitchen counter along with a EBMM Stingray HH, headphones and a glass of cognac - the real backstory was that I was sick as a dog that night and couldn't even get downstairs to the practice space.)
Anyway - this amp has turned out to be a fantastic workhorse in every respect. I've gigged it so often I've lost count, in all kinds of gigs with all kinds of cabs, or no cabs and just through the PA. Even now I'm learning how better to tune it. The "Loudness" dial is a real x factor. People love the sound from this amp. I'm starting to get anxious that, with Genz Benz gone, I will never find a good replacement if this SL 900 should happen to give up the ghost. (Not that it's showing any signs that it will.)