I got the email too, and was tempted. But I really need to exercise some restraint and keep working on the figures I've got.
I'm a little wary about ordering as well. I did get everything on my one other order direct from them, but it took several shipments over the course of many months, and only after repeated emails and phone calls. From reviews/comments online, it sounds like they've improved service in the last year or two, though.
As far as the fantasy figures, the reason they look like old GW figures is that they were doing what Mantic is doing now: trying to ride GW's coat tails. The kicker was, of course, that some of their sculptors were the same sculptors who had done some of the GW figures that were being emulated.
In general, I think they've got a lot of good figures. I don't like them all, but many are anywhere from good to great. I'm very tempted to buy boatloads more ancient Germans for my historical German & fantasy barbarian armies -- but will probably wait til next time. Some of the fantasy barbarians are also tempting -- I love the guy wearing the horned deer scalp.