I want to add to my previous comments about miracast since I recently got my usb-c to hdmi connection. The resolution was a lot better then the miracast hookup. Its definitely readable and tolerable for watching videos. this is like the lumia 640 display, not the lumia 950 display. it just get's the job done.
Since I've only had this for a couple days, I can't say whether the battery is good or bad.
The keyboard is adequate, and the touchpad is nowhere near as nice as the surface pro 4's, but the surface pro's type pad also cost more then this entire laptop dock. again, it works, but it's not going to set the bar for keyboards or touchpads to be designed to. I would put this at the lumia 550 level of keyboards
This is a crowd sourced $100 display and bluetooth keyboard with trackpad and battery. and ports. and webcam. and speakers. I would like to take it on a trip and see if it makes the cut when it comes to doing more things, but i can't help but wonder about other options. I know there's no way i can get a setup better then this for $100, but what would I get if i pieced together something with individual components?
bluetooth keyboard with touchpad: $45 - questionable if the touchpad is better. but hey, it's basically a surface keyboard.
13.3" Travel Screen(touchscreen): $390 - I can't find simpler ones that are plug and play. please let me know if you can. I've seen an HP one for $150, but it's heavy(4.5 pounds) and does not explicitly say it's plug and play. also, there is a non touchscreen version of this for $295, but come on. touchscreen!
battery backup, this is variable based on what you need. we'll say $25
that all said, for $350-450, you may have a better experience, but it's going to cost you alot more then the 99 or 130 that this thing cost.