It works quite well on the Roku, but their interface for browsing is horrible. There's also no recommendations based on previous viewing/rating, as far as I can

It works quite well on the Roku, but their interface for browsing is horrible. There's also no recommendations based on previous viewing/rating, as far as I can tell. I use Amazon video far more to rent recent releases than I use it for the free Prime videos. Most, if not all, of them are already available on Netflix streaming.