Also, iirc, the hotspots won't work if you are in area without regular cell coverage as well. So kinda pointless in certain applications (backcountry, etc).
I subscribed to the trial, but didn’t use it even once, so didn’t renew it for the paid plan when the trial expired. I thought it might be handy to have their AT&T connection for situations where my Verizon service is unavailable. But for now I’m opting to not spend the extra money on another subscription.