Man, ths ASUS router looks like a evil alien device that can destroy a planet or something! :)
But if it works well, why not. And ASUS products are usually really good.

Surprising that don't have any cell phone connection where you live - must be really in the middle of nowhere.
I sometimes watch a trucker on YT, who does livestreams of all his tours. And that works surprisingly well, even in the most desolate places, like in the middle of the Arizona desert or so. Sometimes it gets a little choppy, if he is in mountainous regions, but thats rare.
If you want to have a look, here is his channel: https://www.youtube.com/c/BigRigTravels