I've been curious about a cell booster for a while, even considering making one myself with an old sat dish (directional) versus a non-directional like you did here. This further pushes me that route, but I don't think I'll be doing anything quite yet.
After dropping Sprint, my signal has already gone up 
But I would be curious if the residential version would actually be better for our application.
Leemom, if internet is something you require when you go FT, I would consider Hughesnet. It's not cheap, but they are making significant advances in satellite based internet and the associated speeds.