Love my chrome cast (V1)
I use it with Plex for ripped DVDs, Netflix, Hulu (Plus), HBO Go, Amazon Prime videos (via Chrome tab casting, which works quite well, even with a 2011 Macbook Pro doing the casting), CBS.COM (for Colbert, also via tab casting), FXX and Vudu purchased videos.
It's cheap, it fits into a TV that has no other reasonable connections, and it works well for everything but Apple media. So, I don't buy Apple media.
Of course, those losers at Amazon don't provide a native iOS casting app, but tab casting works well enough that I really don't mind.