Do you use Stamps.com?

Does anyone here use Stamps.com and if so, what are the advantages?

I checked them out one time and found them to be just a middleman with no added benefit.

I checked them out one time and found them to be just a middleman with no added benefit.

agreed, you can't beat paypals integration with usps and ebay plus if your a top rated seller or power seller theres pretty substantial discounts. on a flat rate envelope express normal price is about 20 i get it for about 12 or 13.