The box I won wasn't very big, probably smaller then then one of the current small boxes. Off the top of my head, I got a few Blu-Rays, a few DVD's, a bunch of anime toys and trading cards, some cool key-chains and cellphone straps, a small K-On! night light that I keep on my computer desk because it has Azusa on it, and a borderline scandalous bed sheet that I don't know what to do with, since it certainly can't go on my bed. All the movies were US releases, so nothing to worry about region wise. I was very happy going through everything, and for me I got my money's worth. Looking at the sample stuff in the pictures for this lowball, it's a pretty accurate representation of what i got, except no games, but I wasn't expecting those anyway.
The only thing I wanted that it didn't have was one of those exotic Japanese Pepsi flavors that were in some previous lowballs.