I don't know what I ever did before I had Stamps.com. It is so convenient for me, saves me money AND time, LOTS of time. I appreciate being able to get all my postage for all my packages and letters in one place and not having to waste time at the Post Office. I have not had the need to contact customer service so I can't rate that part of the business. I appreciate the quick shipping when I need supplies as well. I will continue to use Stamps.com for my business AND personal postage needs.