The best aspect of this console is that it will consolidate their development teams onto one platform, ensuring a steady flow of first party games. Which will be necessary, because unless something drastic changes with Nintendo's outreach, third party support will plunge after the first year. It'll keep die-hard Nintendo fans onboard and happy with the rate of first party releases, but that's a gradually diminishing number of people. I'm not sure it will have much appeal beyond their established fanbase.
One thought I had watching the video was... that's a lot of moving parts, a lot of sliding and clicking things into place... hopefully those connection points are really robust because there's a lot of potential for things breaking, gunk getting into contact points and messing up the connections.