[tdott]

Do you have any other smart devices in your house?
If so I recommend you go with something you already have, or something that has devices you plan to add, or integrates with.

I personally use SmartThings, with a Trane Zwave Tstat and Schlage Door Lock. I added Konnected.io to reuse all my hardwired alarm sensors and bring them into the app so I can see the status of all my alarm sensors. I plan to add some light switches to the system.