We got rid of cable TV and went with DirecTV in the stick house and the RV.
We got rid of the landline phone and went with one cell phone.
We got rid of the DSL and got the Verizon Mi-Fi. Speed difference minimal for most things except if you're downloading large files which I don't do.
We have used Verizon Mi-Fi all over the US with zero problems except Sam A Baker State Park in Missouri. They have limited cell signal. I bought the Wilson Sleek and used it last time there and got better (not good) cell signal. The park had wi-fi so I just used theirs while there.