This switch adapter works great! I'm about to go on a vacation and I wanted to be able to play my switch on the (relatively) big screen once I get there. Taking the full dock is out of the question, however, this portable dock is perfect. It still needs to be powered like the original dock but otherwise it works the same, even charging the switch and having the USB 3 port like the true dock does just in a much smaller size.
The packaging contains detailed instructions on how to use it properly with the switch, although it is more or less the same as the normal dock. My only point of critisisim would be that I am aware that the switch has its intake fans on the back of the unit, opposite the screen and that using any dock makes the switch work harder than in portable mode. This means it is much smarter to have the screen side facing down however the instructions make no mention of this.
In actual use, this thing is fanstastic. I planned to livestream using the adapter to play Splatoon 2 but my internet had failed me that night. Instead, I pre-recorded over 3 hours of gameplay in which I used this adapter and it will be broadcasted on my twitch channel https://www.twitch.tv/mycraftisbest August 1st @ 9:30 and later put onto my YouTube. By the end there were no noticiable issues, both the switch and the adapter were only slightly above the ambient room tempurature and the only hiccup was when I accidentally kicked the power adapter from the wall (again, this does need to be powered when using it with the Nintendo Switch). All in all, considering how few USB C hubs work with the switch and how well this one did work, I would greatly reccomend this product for anyone looking for an easy way to hook up their switch away from home.
*This product was provided to me at a discounted rate in order to provide this review for you