Thanks for posting this review. There's a shortage of good cell booster reviews. It's really hard to get any level of confidence in whether they really work or not, aside from just ordering one and experimenting with it.
I do a lot of camping off the grid and I work fulltime remote. I really needs my cell data. I recently got the $215 Weboost LTE booster for Verizon/ATT from Amazon: https://www.amazon.com/gp/product/B07W3QGDG3/
It has definitely helped me to get service sufficient for working remote at times. Usually if I can get ANY signal without the booster, I can eventually get the booster pointed in a direction that will give me "ok" signal, enough to work at least. Sometimes if I get zero signal without the booster I can manage to get a bad signal with the booster. Not enough to work, but enough to at least send messages and slowly surf the internet. It was definitely $215 well spent for me.