People are complaining a lot about the ADs and only pointing out the bad, let's actually focus on what Crackle is, it provides you movie and tv shows at no cost, just sign up and go. I was on crackle when it first launched, video quality and ads were of poor quality, but they did have content I liked sometimes, over time the video quality has greatly improved and yes ads are a bit "irritating" but they are offering things for free, and they get paid by selling ads. They're accomplishing it, and as with anything, rome wasn't built in a day but two years ago to today, its now feeling like they're getting their model down pretty well, and I'm more and more impressed.
Good service, its free, it works and they do have content others may not and sometimes its easy to launch the app on my tv and watch something off their service.