I've been using Tixati for years and prefer it over all others.
I'm glad it is available to Linux users. It is the only closed source software I use.
And I know any and all snob ratings from the open source community are just that.
Tixati work very well. I used to like Vuze but Java is too heavy and unstable.
I'm mostly interested in sharing files as a Seed(er) and Tixati seems to handle this best for
multiple torrent seeding on a fast connection.
All clients do fine at downloading pretty much and of course Tixati excels at this as well.
ts about time I donated but would like to be assured its one time and not a monthly support thingy.

be assured your donation will be a one time thing and NOT a monthly thing.

you can donate as often as you feel like.