My Samsung tablet had it preinstalled. It was also available on the website for download.
http://www.samsung.com/us/article/turn-your-tv-on-to-a-galaxy-of-remote-possibilities
I am in the same boat. I am currently using the "Claymore." It is some tube monster hybrid that Ari created. I tend to lean towards SS though. TTVJ has one $750.
So far its pretty straightforward. The apps are more like bookmarks. The Dragonfly DAC does not work but the Fiio is plug and play. I think the Pico DAC will work.
I have the Acer 11.6 with Celeron and 320gb. Open box was too cheap to not bring home and try it.