Second biggest is they don't have, last I saw, an easy way to see if a movie is now available on streaming when it's on the dvd list.
Maybe I misunderstood how it worked (is there a better way!) but it scrolled too slow for me. I usually wait a month to see if anything is new because of how infrequently they get new movies[0].
[0] streaming seems to be almost all tv shows now and they have those getting on the 'new' list constantly.
On that front...how come FOX/WB/etc don't compete and take those views? Last time I checked FOX only had the last 5 episodes when I really needed the a full season to catch up. Making me go somewhere else for their own content just seems weird.