Payment processing doesn't pass the smell test
The free service is OK if slow. 50GB is a good amount for a free service. THe reason I am giving it such a low rating is that twice I tried to purchase their service so I could move more data. I only needed to do it once and so their rate was attractive. Unlike other services they claim you can sign up to pay on a monthly basis and cancel any time. the $9.99monthly cost was lower than anything else I came across. The problem is that on both occasions when I tried to pay through paypal I got this scammy message saying that it was being processed "manually" and that this was normal. No way that is normal. It also said it would be processed within an hour, or maybe not. Then either in their email or the page, I don't remeber they had an email link, didn't work. And their "support" was just a bunch of FAQ or knowledge base crap. So I had no way to find out why on Earth they were giving me the run around. It did not pass the smell test for me. I did use the free service because I just couldn't find any way to transfer between dropbox and onedrive that didn't cost an arm and a leg. It took a few sessions because I had more than 50 GB to transfer. I cancelled my account after that because I just didn't trust them. If you need to move 50GB for free go for it but be careful and good luck with the paid option. I hope it works for you, it sure didn't for me.