Really for a thrift store it's not bad. It's clean and organized and you are not sad in there by poor lighting and rude staff. My sister and I spent 1.5 hours in there sifting through merchandise. Some made us laugh and some stuff was actually cute. There definitely out dated items like your Jordache teal colored jeans or 1987 prom dress. The furniture was definitely out dated too.
Some things were over priced. I could go to that store where it originated and get a better deal but in this case you know it's for a good cause. They help people in need with the profits.
The best score for me was children's books. I got 5 books for 4 and .69 each. My 3 year old was very content while shopping! There are great deals and a great selection on all kinds of books, DVDs, video games, etc.
All in all, decent. Worth going there more if you have something in mind than going there open minded. There is a lot to sort through.