works very well. gives choice of usps or ups ups always cheaper, it links to your paypal or bank, ups label prints on your computer, take to drop off point I use cvs store.
It even saves you a bit on flat rate usps. Very easy to use. For parcels you input actual dimensions, weight, and destination address. It gives you options for delivery. The insurance is third party and I have not needed to make a claim so have no idea what happens when things go bad.