We have had some luck in getting good deals there, but it is very hit or miss. It truly is an outlet store, with a lot of non-matching merchandise. With the clothes, you might find a pair of pants but not the top that matched it.
They also have a mailing list that you can sign up for and they send out extra discount coupons. The last time we went, I had a coupon for an extra 25% off my entire purchase.
So if you are truly a Disney fan, you just might get a few good deals.