@csader: It’s been VERY reliable. I had a program about three months ago with the infamous SmartOutlet. This Zigbee outlet started give programs to lots and lot of people. It essentially was interfering with signals from other Zigbee products (Presence sensors, Multi-Sensors, Motion sensors). I worked with Support for a while and they eventually replaced the unit with a Z-wave outlet for me. Since then I haven’t had a single problem… well until yesterday that is. But that one I knew was coming. My battery in my sensor as been at 1% for like the last 3-4 weeks. It finally gave up the ghost yesterday and my door wouldn’t open. But as soon as I replace the battery everything was fine.
So, reliable? Absolutely.
Presence tags? Yes.
Delay? Well… that all depends… For me right now my garage often starts opening when I’m 3-4 houses away from mine. But, this is because, in a large part, I have a plugged in SmartThings motion sensor sitting in an upstairs window facing the direction I come home. I live on a dead-end road so I only come home from one direction. The plugged in motion sensor acts as a range extender and can often see me from really far away.
Before I put the motion sensor there I would sometimes have a delay of 5-10 seconds at my garage before it would start going up. But… part of that was because of the geometry of my house as well as interference from other objects… namely the neighbors who would often part a van in the “line of sight” from where my hub was located and the direction I would come down the street.
My house would kinda block clean access, and the van would make it worse. By the time I got in front of my house then my house REALLY blocked the signal. Had to go through 95% of my house to get to the hub from the street.
So… Delay? With proper positioning of the Hub and/or Range extender: Zero delay.