I wouldn't mind Netflix. However, does one HAVE to watch the rented movie right then or can it be saved for an hour or two, a day, a week, etc for future play?? Their site doesn't seem to answer that.
It's not a rental, per se. What I do sometimes is start or select a movie, and if I leave I can come back to it, start from where I left off, or play it from the beginning. It stores your most recent selections.
However, my biggest gripe about Netflix is that the online selection is pretty limited. Very little in terms of the classics. I'm actually considering canceling it because they just don't have as many "good" movies as I like. Pity, really. I'd pay a little extra to have a better online selection.