While I find it convenient method to mail ie. Print my own stamps and send my own smaller packages, the service does not save me any money. The only true part of their add is "never go to the post office again". Past that the 1st class stamps presently are $. 50 which you can print yourself. I print on sheet of 25 so I pay $12.50 for 25 stamps. The paper to print the stamps must be purchased from stamps.com. I forget the cost/sheet but its not really inexpensive. Plus to use the stamps.com service is $17.99/month. You have to use a lot of $. 50 stamps (saving $. 05/stamp) to make up the difference in the cost of the service + the cost of supplies etc. I guess you can say I save time going to the post office and the gas spent doing so, but the service would still be the more expensive for us. The convenience is the only real winning part.