I was a long time customer. However, it took me literally hours to renew my membership which had to be paid by bitcoin.
I was very disappointed to find that there was a limit even as a premium customer (not mentioned in their become a premium member blurb).
So I decided to try to download their free usage on a couple of files. Its a joke because its almost impossible to download without getting the message "it seems you tried to download before the 60 seconds limit". This limit is set by them, you must wait the time limit before you can verify, then you get a message to say you didn't wait long enough. Complete waste of my time. I would NOT recommend to any potential users.