SHN. Comparatively cheap on the freebie side when there are options. Of course, they have some advantages such as a large variety, fast to ship, CC payment.
I've purchased stuff at levels that meet their promotional offers. I have yet to receive the "full" promotional offer and instead have received portions, if anything. And, a piece of bubble gum? But, have always received what was on my primary order.
The grab bag thing, yeah that sucks. Word gets around on stuff like that. Hence, your post.