Yep, I have 6 of the HR92, 1 WiFi controller, and 1 opentherm bridge.
No other system comes close to the versatility of evohome.
I'm thinking of adding a couple of temp sensors as well.
I have about 10 radiators, so it would cost a lot to fit HR92s to all of them, unless I don't need to fit them on all of them, got a small downstairs toilet with a small radiator, that could be a bit pointless fitting one in their for example.