They offer a .deb package that works on Ubuntu, so installation is easy as pie.
I think they have a better collection of tv channels.
For instance, me being Belgian, I find it great that they have VT4. A commercial station that broadcasts shows like friends, dexter, lost, heroes, according to jim, … and movies.
They all have the original English audio so anyone can watch them (they do have dutch subs).
Some other channels include a poker channel, a motor sport channel, …
A full list of channels is available on their website.