Never heard of Arken. So many optic companies these days, I wonder how many will still be around a few years down the road. Specs look pretty good. Price looks really good. I like the 34mm tube, zero stop and the Horus-esque FFP reticle. If this is going on a .308, I would go for the 6-24x.
This guy is familiar with high-end glass and he seems impressed: