If you do go with Ecobee there are two integrations for Hubitat and both work well. One is the built in driver and the other is a community developed driver by @storageanarchy. I have been recommending Ecobee's due to their open api (still cloud connected). And their implementation of room sensors for follow me mode. At locations that have a Hubitat and Ecobee's I almost always install the community driver:
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