We use a range extender from Hawking. Here in our "home park" we get maybe one bar signal direct, the hawking gets 3 bars.
Problem is the parks wifi is horrible. Strong horrible is no better than weak horrible.
So I put my phone in hotspot mode, and connect the hawking to it. I have a Wilson cellular amp (it's 3G, I need an upgrade here) which is helpful pulling in a useable cel signal in marginal areas.
Now all I gotta do is convince the teenager not to spend his weekends camping streaming you tube videos on his iPhone, that really eats up our Verizon dataplan.