There's a nice suite of tools for managing Ecobee with Hubitat:
The Ecobee are also pretty smart devices on their own so they don't need as much integration if you just want the basics. They don't just turn on and off on a schedule, they can also monitor humidity to maximize comfort and do eco+ to try to save you money. You can turn the sensors into presence sensors and have them de-prioritize areas you're not using. Lots of smarts built into the device / app / service that you don't have to build yourself.
