NORTHEAST U.S. -- VZW Coverage Southern Maine (Kittery)

I have had AT&T for years, and have never had a signal at my in-laws' summer cottage in Kittery Point, ME. My father-in-law has a Verizon cellphone but rarely uses it. It's an older model, and he's never gotten a signal in the cottage either.

I would switch my family plan and try to talk my older daughter into switching (from AT&T) if I could be sure we'd get a signal in the house.

I've heard promising things about the Unicel acquisition. Does anyone have first-hand experience along Route 103 in Kittery Point? It looks great on the VZW coverage map online, but I don't want to go through all this trouble and not be able to make a call from the cottage.

Thanks for reading!
Greg