I pay too much as I use a 4G router on the boat with Cosmote and use 5 Gbytes plan monthly with vodaphone on
phone. This pretty much gives me continuous coverage. Billing is a bit of a problem, everytime I think I get it figured out it seems to Change. I managed to get a monthly plan with Cosmote After fits and starts including using allotted data before the end of the period and not being able to recharge unless I paid a higher
price, finding that I could by a streaming package for videos etc and then it being canceled I have a workable system. I can usually get some sort of connection between islands and its pretty good in harbor. I have found no need for other expensive
equipment. If one wanted to spend the
money on a high gain amp then they could probably hijack a lot of restaurant free
wifi in the harbors.