I’ll echo the praise for Frontpoint (available directly or through Alarm.com. Self-install is super easy. And one attribute that I don’t think anyone’s mentioned yet is that the system is completely wireless . . . meaning the principal alarm unit communicates with the monitoring service wirelessly. Most systems communicate via a phone or tv cable wire. I don’t have a landline phone, and my tv cable wire is easily accessible from by backyard . . . meaning it could easily be clipped by a burglar, completely disabling the system, before the burglar enters the house. Beware, nearly all systems today are advertised as “wireless” because the individual sensors communicate with the main unit wirelessly . . . but the main unit is then connected via wire to the monitoring service. And yeah, as others have mentioned, Frontpoint’s remote monitoring via phone app is great. Cheers.