Need internet, HELP!!

[Texican]

Howdy everyone,
This is my first official post on the forest river forums, happy to be here! We are in need of some assistance. We have been looking at purchasing a mobile hotspot for our RV, while searching for answers we came across yoursinglepoint.com we were wondering if anyone has had any experience with their hardware or internet plans. Currently we have a T-Mobile plan that allows us to use or iPads or iPhones as hotspots but often times it is too slow or we have very unreliable signal, we were wondering if there were any options that could allow us to use a SIM card and/or router combination to provide us with a reliable internet signal. As far as usage we often stream videos and use lots of data, thanks in advance.