Short story:
Owned this some years now and I like it for the price.
Biggest gripe is that the bridge is mounted a little wonky on mine. This took me a long time to notice but I do think it impacts the function of the trem a little bit.
The pickups aren't great and in my case I'm not sure that I would upgrade but if the trem on mine was all good and I'd still have the same need for this guitar, I would definitely go for it.
Harley Bentons headless variants do look like a a better option if they where available back then but i bet this is smaler and also stil feels like a guitar.
Long story for context:
Bought this years ago since I liked the design of the Steinberger but little did I know that the little bugger would be of such great help to me and my acing back, shoulders and wrists. With this guitar I could keep on studying and preforming from time to time. For a while I was set on working my way to an old higher model Steiney one day. Luckily today I'm in better shape and can play other guitars again but I'll keep this one as my special tuning guitar.