The costume's overall quality is good. The only low points are the gloves and the moustache. The gloves are thicker on one side and really thin on the other making it a little easier to use your hands but they end up looking a little weird. As I read on other reviews before buying this item, the moustache is less than great, but for very cheap you can get a decent looking moustache. The inflatable belly's quality is good (actually better than some beach ball I had as a kid), however, if you inflate it all the way you will end up looking more pregnant than fat. If you inflate it less, you can make it look like a nice trucker's gut but it will require some craft to hide the edges that appear as you deflate the belly. If you don't cover this edges, you will look like having nipples on the sides of your bellybutton. Also, I think they only manufacture the belly in one size, so if you buy it in Large size it may end up looking better than in my Medium one.
The price is great for such a good costume and even buying the extra moustache you can keep it all under $50.
Bottom line, it is a good costume for an excellent price.