We have used ours the entire weekend successfully. We have T-Mobile @ Niagara Lazy Lakes Campground near Ransomville, NY. I've been getting 5G quite consistently.
Good cell service is a must, so it depends on your cell reception.
A few weeks ago we were at Letchworth, SP near Perry, NY and had no cell service and no WIFI.
So it depends.
WNYBob