This is very simple. Actually, you can find all the information here.
We offer unlimited¹ downloads from Torrent, Usenet, your Cloud and selected filehosts.
For all other services, our fair use and daily limit apply.
Information about our fair-use limit can be found here and our daily limits are listed here.
Furthermore, you can store 250 GB in your cloud and have 25 parallel download slots available.
That's it, we don't have more limits.
¹ Unlimited downloads are not counted towards your fair-use balance. However, if you exceed your fair-use limit, the unlimited downloads can also temporarily no longer be used.