They are cheap tires, some of them are made in China as well as S. Korea.
We move a decent number of them at work, but they really are nothing special. If your looking for a general purpose everyday cheap tire, I'd just say go for goodyear integrity tires. I will, however, say that Hankook Snow tires are very popular because they are pretty cheap, so people who need them "just to get by" like these a lot, and I would probably consider them for myself as well. Not sure on their performance compared to more expensive tires.
Their Ventus line of tires are popular with younger people who drive cars they clearly can't afford, or at least that's the trend I notice with them. They do seem to have a high rate of bubbling in the side wall, higher than some of the more expensive tires we sell.
As for their larger light/medium truck tires, I'd say pass. I got 2 sets of them for a buddy of mine who runs a company pulling trailers with F350's and they swore them off for good and, so far, have been quite happy with the BFG's I got them.