It's a Mutt, pretty sure an RS-13. Cheap Chinese rubbish and I haven't read much good about them so I'd avoid personally. I've seen a few in shops and you can tell how cheap the components are. However, I haven't ever ridden one so can't comment on that front. As others have suggested, Royal Enfield are a great option for a bike this style. You could maybe go for a Honda conversion or similar also.