Movist is indeed the BEST player out there. It handles every HD single file I throw it (H2.64 1080p MKV, H.265, Hi10p, etc) and works flawlessly. It's VDA hardware acceleration seems to be the most efficient one out there (I've been doing comparisons between Movist, VLC, MPlayer OSX Extended, MPlayerX) getting 20-30% usage instead of 40-50% of CPU usage and it's subtitle handling is just awesome (you have total control and how to display them)
Development is going strong and the developer is very enthusiastic about it.
The only drawback which doesn't make it my default player is the lack of support for Anime's SSA/ASS subtitles, but the developer has told me that Movist 2.0 which a BETA version is coming in early 2015, will have that feature.