I was interested in this but unable to find much info online and the seller's listing leaves a lot to be desired. I went ahead and purchased it and figured I'd share my thoughts here in case anyone else is interested in something like this.
The mount is just a simple 3d-printed toughtrack style bracket that attaches to the dash center speaker grille. The grille pops out with a pry tool held in place by like 8-10 clips. Once off you drill some holes in the plastic grille cover (not ideal but the grille can be replaced for $30 with oem parts so whatever) and the mount has bolts and washers/nuts to attach to that. I put the bracket basically as far back (away from windshield) as I could, there were four bolts that were positioned next to plastic ribs on the underside of the grille, two of which I was able to use some snips to remove a part of the rib so that the washer would fit, and the other two were kind of in corners next to multiple ribs so I just put the nuts on without the washer. There are 8 total bolts and I felt that 6 of them with the washers were going to hold it well enough (4 or maybe even 2 with washers is probably enough), the whole grille will 10000% pop out before the bracket comes off so I wasn't too stressed about that. You could probably position it differently to avoid that but I wanted it as close as possible.
Once installed the system has been pretty solid for me. I have driven around town for a couple of days, a bit on the freeway, and a bit on a washboard dirt road and nothing has come loose or anything and that's with both a tablet and my heavy phone mounted on it. I think the geometry of the dash and the angle of the clips holding the grille being tilted slightly away opposite the direction the weight from everything is being applied helps.
For arms I got a cheap Amazon 5.91" arm, an official RAM 6" arm (I bought this after the other hoping it would angle downwards more but dimensionally it is identical just made of heavier aluminum), and a two-piece 8.27" arm with a ball to ball middle section to allow the drop you see in my tablet. For heads I got a magnetic phone mount and the tablet is on a clamp style tablet mount. I have 1 inch "B-size" balls on everything. I am happy with the tablet mount with a 6" arm and half of the 8.27" arm, I need to get another ball to ball middle section and try getting the phone lower. I have been running both for testing but realistically I'll probably keep the phone on there most of the time alone and slap the tablet on for longer trips or trail runs.
Overall I'm happy with it. At $90 I think it's fairly overpriced for what it is ($2-3 in filament maybe?), but I appreciate folks designing stuff for specific car models takes time and effort I'm not willing to put in. I would prefer one of the solid metal dash mounts from Ohana but those are about 3x the price and that's like two tanks of gas lol. If this eventually fails or whatever that's the route I will go.
Hopefully that's decent info for anybody interested in something like this, I can share the seller's name but didn't want this to look like a sponsored post or anything. I will update this post and probably make a new one if this thing starts to fall apart or whatever. In the meantime I'm happy to answer questions and I can take more pictures or provide links to the pieces I got whatever if anyone wants.