I have an 3rd Gen Apple TV and the thing is as slow as fuck to stream movies. Also, Apple TV doesn't immediately put out movies for rent, as fast as it does for buying.
I just want to rent the fucking movies. Not buy them. There's no more brick and mortar video rental stores in my area.
They just make it more enticing to pirate the movie since it's probably easier. (Not that I actually do.)
And it is definitely easier to see movies that have been pirated.