I install audio video systems in homes and I've done a few SureCall cell booster systems over the years. My experience has been this:

If you live in a place with bad service outside the home all you will be doing is amplifying that same bad service inside the home, waste of money.

If you live in a place where you have good service outside the home but the construction materials of your home cut down the signal reception inside the home then yes, a booster system will work good. You run in to this a lot in commercial buildings where the concrete and steel construction act as a faraday cage, putting a system in those buildings does wonders. For homes a lot of the big Cherry Creek homes with the stone and stucco exteriors suffer from a lot of the same problems.

It is such a crap shoot of whether or not it will work that I refuse to even entertain the idea of doing themanymore.