I've had T mobile for quite some time on their " Magenta Plus " deal which benefits me on my recent change to T mobile Home Internet at 30 or 35.00 a month instead of the 50 bucks a month.
We do maintain a "visible " phone on the Verizon Network (25.00) as a redundancy for times when our T mobile has no signal. We use one or the other as our Not Spot. I have an AT&T SIM card for the do-hickey come on the roof but only load it when necessary.
So in a word....Happy with T mobile!??as
PS
A quick word on my switch to T mobile Home Internet. Prior, we had a bundle with Frontier communications for too long at roughly 170.-180.00 a month with a relatively slow fiber line(as fiber goes), home phone and basic TV( which I didn't need but it was cheaper to include it rather than getting the two options I wanted). Granted my current internet speed fluctuates somewhat depending on time, it still does the job. I also went with Ooma internet phone(so far so good).
Long story short......from 180.00 per month to 45.00 Per month.