I personally have bought off places like this and never had a problem before. You can normally get a couple really good deals if you are paying attention and watching for the emails. Gift cards, jewelry, etc. This month they are hosting a Jewelry in January event! And the thing with these deal places, is that they have all the details and information right there on the page. Some of the gift cards only let you do them a certain way or if you spend so much. All the little information is on the site. Just make sure you read the small print. Most of the time these are worth it but you just have to make sure so you don't get stuck with something you don't want.
Overall, I love places like this. I get the email in my inbox every morning and the deal goes live every day at 12 PM EST. I have snagged many a good deal through places like this and let me tell you, sometimes they are half off!! You really have to act fast though, these deals only last one day! So if you want something, or you aren't sure, grab it while you can:)
Make sure when you go in that you set up your profile so you don't have to worry about it later. This way they know what you are interested in and can offer you the deals for those things. So, if you are interested in getting a good deal, check out nomorerack.com. It is the place to get a good deal!!
I have not purchased from this site. All thoughts are 100% mine.