My father uses a WeBoost Connect 4G in his shop on AT&T and I use it on Verizon. He has the antenna ran to the roof. It works very well in his shop. Prior to install, you needed to step outside to make a call. He can now stream music and video in the garage. He had purchased an inexpensive unit initially but it would only boost the signal directly under the booster.
Most people are unaware that signal boosters need to be registered in the US, as they can interfere with emergency signals. They also need carrier approval.