Yes, I hav done Netflix, I like it. I think I pay around $24 a month, you can have up to 3 DVDs out at a time. Basically, when you join, you go to their website and create your "que" (the list of DVD's that you want to see). You can add/ remove/ change the order of your que whenever you want, very easily. After you join, you will get the first three DVD's in the mail. When you are done with a DVD, you tear off the front of the envelope, and it becomes the envelope you return the movie in. It's super easy, throw the DVD back in there and drop in the mail, no postage required. When you return a DVD, you get the next one on your list sent automatically. Really, really easy to do, it usually takes 3-5 days from the time I mail one until I get the new one.
I also like it because it has a lot of TV shows that I like on DVD, and I can just start at the first episode and watch the entire series, one disc at a time!
Hope that helps!