I have bought a few coupons through dealfind and there was something wrong with every single one. One of these reviews says that they are on the customer's side; that certainly isn't true, so apparently it isn't good for anyone.
I bought a dealfind an inn, and it was such a dump that I didn't even feel comfortable staying there. The only redeeming feature of the place was it's pool/hottub, which they failed to mention anywhere, including the inn's website, was closed for renovations. They refused to refund it even in part.
I bought a dealfind for hair services. Dealfind apparently failed to print the disclaimer that hair longer then shoulder length might incur an extra cost. The salon was super, but that was still a little annoying.
One was for glasses; except you could walk into the store and get them cheaper on a store deal. So there's a wasted 30 bucks.
They also ran an ad for a t-shirt that was pretty misogynistic. Similar sites sold the same shirt in a non-sexist way.
Anyway, overall I do not recommend. They don't stand behind their products, their deals are quite possibly $%!#, and they don't try to make it right. If you want a deal, you can find the same thing on Groupon, Teambuy, Living Social, etc.