Nice find but if you have a 4k TV and expect to get 60fps out of these they won't until Intel releases their next generation. The CPUs that have a "U" in them have a hardware flaw that prevent playback at 60fps. The Intel forums are a buzz with this as the product documentation specifies 4K @ 60fps.
I have an NUC 1 gen older and absolutely one of the best pieces of equipment I bought a couple years ago. The thing run my Ubuntu and Kodi flawlessly and then some.