Totally recommended. The best of their low cost plans is the $8.99 a month unlimited, while it's only one DVD rental at a time, you have unlimited access to their online movie database (12,000 movies/programs and counting).
Couple their online database with a HTPC or a netflix player box and you'll have some great supplemental entertainment.
The best part is you can "pause" your subscription for when you go on vacation, or if you get bored with it temporarily.