I've gotten my Halloween costumes here frequently. I find their fitting rooms uncomfortable to try things on in. Because of that, I usually NEVER try things on and go for less complicated costumes. They are always so busy it is hard to navigate the store and in the past I've found it difficult to try and find customs due to the organization of the store.
That being said, they have some of the BEST animal ear selections I have ever seen. You could be a slutty ELEPHANT if you wanted. Last year I was a zebra and it was unique. Safari animal ears and tails? Awesome. They have a lot of costumes but if you want to save money look more to building a costume starting with accessories. If you go straight for the full costumes you're shelling out a minimum $80.