But does it work with Chromecast yet? I have had Prime for a long time, and as long as the terrible Silverlight/Flash players are the only way to view the content, I find myself leaning towards Netflix and my Chromecast.
I have Prime and the Amazon Instant Video app on a Roku 3. I rented one movie on it right after I got it (about two years ago) and haven't used it since then, but my girlfriend uses it once or twice a week and hasn't ever complained about it.