We upgraded our PlayOn service and discovered we can also stream from Redbox Instant. I signed up for their free month trial.
We probably won't be getting an actual subscription. I wasn't all that impressed with their selection of movies. also, there is no organization to them at all. The categories are things like, "Buddy Movies" and then the movies aren't alphabetical within the category. You can at least bookmark one to find it easily, but browsing capability leaves a lot to be desired.
Their rental fee is comparable to Amazon Instant ($3.99 regular, $4.99 for HD). I think they might get some new releases sooner than Amazon does but I'm not entirely sure on that. I also couldn't find anything that said how many hours the rental is for. If it's like their boxs, Amazon is cheaper, b/c their rentals are for 48 hours usually, not just 24.
So, will not sign up for service, but can see us renting individual movies sometimes.