I've had one for about 5 years. Very easy to install and it works very well. When I got mine they would ship the base station with either a Verizon or T-Mobile card. I'm not sure what they offer now but make sure you get something that gets service at your house.
Anybody got one of these and have an opinion, good or bad? Been looking at them.
Abode smart home features blow away Simply Safe, and it integrates with more ecosystems. It's also super easy to install. I have had it for close to ten years now. Lower fees than simply safe too. Check it out. www.goabode.com