We have netflix, and the quality of main stream movies isn't very good. It has a lot to do with getting license agreements in place in Canada to distribute the movies. Looking a the American content it's absolutely fantastic, so one can only hope it's a matter of time to get to that point.
It's getting much better as they just signed with one of the top studios Paramount Canada??
Anyway, aside from that the kids love the kids show they have in place currently and there is always a movie/doc that I wanted to go see, but didn't want to pay the 10.00 ++ at the time to go see it in the theater.
As for the quality of the streaming, rarely do I have to wait for it to buffer, and since they improved the compression the amount of my overall download quota it takes is very very small.
Take it for what it's worth. 8 bucks a month in my opinion is worth it.