The problem we've had with iNTEL Comut-Stiks is powering them. Hanging off the back of a 60" 4K TV, they only output 1080p, but they need almost 2amp of continuous power to run smoothly. (they can cope with 1.5, but keep going into power saving, and if they hit 1.2 they just treat it as a power failure)
Now they come with a power source, but then you've got to run a USB cable from your TV down to a wall socket, and the lead isn't that long, and most that are have too high a resistance. It'd be logical to power it off the TV, but the USB ports on most presentation TVs (and we've been looking 45" - 68") just don't give enough amps. Worse yet, most of them switch into power saving themselves if an image is static for too long. We work in teaching environments, so it's common for teaching staff to leave the final slide on screen during the lesson for students to refer back to, and they just shut off. Due to European environmental law, they turn the power off on the USB ports when they do that too.
We have bricked so many Comput-Stiks right now. XD
Hanspree make a similar device, to the extent that all the drivers and a base image seem to work just fine (for unbricking your Comput-Stik which iNTEL won't provide an image for and making a boot USB they'll except isn't as trivial as giving an ISO to Rufus) which seems a little more tolerant, but my feeling is that these things need a mobile phone battery to store spare amps in down time to cover for amperage drops and source sleep states to become reliable enough. At least for our needs.
Also, don't think you're going to be using it as an HTPC either, because it just can't get enough juice, or cooling through it to play back video streams. I'm not sure if they overheat (don't feel more than "warm") or under volt, but they power off like you pulled the plug on them. This isn't an Amazon Fire stick, no matter how much it looks like one from outside. ;)
I have one of the Acer bricks, (because I think it has more air-flow space and certainly has a more solid power-pack arrangement for the same task, and it'd easily mount next to a display, if not behind one without being too ugly) but haven't found anywhere to get hold of the stacking modules yet. That's okay for streaming, but seems to balk at Googles DRMed streams. Not sure why, but that seems to be too much for it.