i worked remotely for 5 months in a class C RV, in some really remote areas, across 36 states total. in my experience, internet was great 90% of the time. it was faster in rural/small town rather than metro areas, i'm assuming because there's less load on the towers. the worst parts were actually in national parks, which had almost no service. some mountainous areas were bad depending on which side of the hills you were on. deeply forested areas were hit or miss. usually, it didn't take more than driving a few hundred yards to to go from bad to acceptable service. anything near a highway was pretty much great. i also worked from a lot of parking lots in commercial areas, all of which had good cell service. i was able to skype and work over SSH fine. it was as good as broadband in most cases. i was worried about the internet the most when i started the trip, but it turned out to be the least of my problems.

i used ~150GB/month, with an unlimited verizon plan. i used a dual antenna hotspot, with an extra antenna extender. if i had 3g service somewhere, i could use the hotspot and antenna and usually get lte. i thought i would need satellite, but i didn't. its also slow and expensive. slower than 3g probably.

when done, i sold the RV for the same price i bought it for, saw a lot of the US, saved $12k on rent, spent $2k on gas and $700 on tires, $200/mo on internet... that's about it. i got a LOT for my money