My little Minix PC arrived today and I've plugged it in to the TV and had a bit of a play. So far reasonably happy with it. It's pretty responsive while navigating through all the programmes and menus. It took a while to run all the Windows updates but no more than an hour. The Air Keyboard iPad app isn't working that well with it so I'll probably need to invest in a wireless media keyboard with trackpad, though I'm hopeful my Harmony remote might work with some of the apps. Streaming is a bit choppy from TVNZ and Lightbox, but I had 1080p content from YouTube streaming flawlessly, so that's likely down to issues with Flash and Silverlight rather than the device. It was watchable but obvious frames were dropping here and there. It'll do what I wanted, which is stream from TVNZ/TV3 on demand, browse the web, etc. I've installed Kodi and Plex but am yet to try them out. At the moment I feel like I got my $200 worth.
If anyone has any questions or wants me to try something on it, let me know.