I used
bitfetch every now and then, and it worked OK for a while, but it often doesn't download torrents correctly anymore and it looks in general like it's mostly an abandoned project.
Basically bitfetch is a seedbox, but with pay-per-GB instead of a monthly fee, and it's intended mainly for downloading rather than seeding. I like this model a lot because I don't download enough torrents to justify a continuing seedbox subscription, and it's much faster than downloading+seeding a torrent on my rather slow Internet connection.
It'd be nice if someone would create an alternative to bitfetch. I'd definitely use it.