So after playing with this thing all day I have a verdict.
First, here are some board shots, I think it's identical to the one
@Element18592 has.
The last shot is reversed so that I could compare the traces and vias of both layers which leads me to believe that the board is only dual layered with no hidden layer underneath. That means that the board should be able to be trimmed down to something like this with relative ease:
(Sorry for shitty MS paint, was on my laptop which doesn't have PS on it)
The "region switch" doesn't do anything as far as I can tell. PAL games can be booted when it's on NTSC and you can change the video settings with a toggle under the software settings. It's not even connected to anything on the board as far as I can tell. The USB port seems all but useless right now. I could be wrong, but I have yet to find any documentation on it or a video/review of someone that used it at all.
I still have yet to check under the SD slot for any vias or traces, but seeing as how the only vias on the other side of the board are connected to the ground plane I'm guessing there's nothing to worry about there.
Software wise I haven't noticed anything not working or anything out of the ordinary. I'm using a class 4 SD card (only thing I had not currently in use lying around) and game load speeds are pretty damn fast compared to what I've seen the 64Drive and Everdrive do in person. I'll be buying another class 10 to try it out later and see if that speeds it up at all.
The CIC chip is in a socket for some reason or another. That'll be changed soon to thin the board a little.
TL;DR: This is worth it if you buy it at $65 or so. I have run into no problems (granted it's been one day so take that with a grain of salt) and by the looks of it the board can be trimmed a decent amount compared to the Everdrive which is minimal as well as the 64Drive. If this board can be trimmed the way it appears to be able to then this would be a good alternative to the 64Drive portable edition assuming there are no hiccups with the hardware failing or anything of the sort.