Been using filesonic for about just 2-3 weeks now and I must say it's like a F* nightmare for a developer. They change their website (along with the entire upload process) constantly. Of course, changes are mostly tiny, but it still makes your uploads fail until you fix your code.

In comparison, I used to upload to hotfile, before they started their witch-hunt, which unfortunately affected me as well, and I had no need to update any piece of the code, which was responsible for uploading (apart for some improvements, which had nothing to do with hotfile itself) for a year or even two.