I have one.

I guess the only con I have is the 15.00 monthly fee.

Pros: I don't have to go to the post office and stand in line.
You get corporate rate on all postage. I ship First Class using 000 bubble mailers and pay 1.69 which includes tracking. Post office price is 2.05 I think now.
It is easy to ship overseas as long as you know which class of mail you want to send. It has the custom forms so again I just walk in post office and drop off.
You can order supplies from them but I recommend using Retail me not website to find more coupons to save even more. I only order the labels from them and get bubble mailers from Ebay.

No matter how many packages you sell time is always a factor so not having to go to the post office makes the 15.00 worth it a month.

I hope this helps.

Paul S.
R-7745