Lots of sounds, most of them good. Feels good in use too, though it's a little awkward to see which amp model or effect you're on without referring to the provided reference card, and twisting your guitar to find the lights.
Outside that, it delivers what you want in terms of tonal variety and quality. It doesn't sound like an amp in a room, but it's not a million miles off either, it surprised me a bit. I would say it flatters your sound well - might be a touch of compression - but in a pleasant way.
The Bluetooth element is great, but bear in mind that's for streaming a backing track not using bt headphones, you have to plug the headphones in.
Overall, I'd recommend it over something like an amplug but be aware it's not going to blow your mind with faithful recreations of classic amps. It come close for such a small device, and the recording element via a computer is quality, but you aren't going to replace your Twin with this for anything beyond quiet practice sessions.
Still recommend it, for the price, the size, it's very good.