I used floor sensors for a long time but now I just use a supply sensor to the floor and as feedback we also have an air sensor that will adjust the curve so that it is more responsive to passive conditions, but that purposely has a limited range. Properly instructed, the HO can adjust the curve if they really want to but It is rare.

As you all know, radiant floors are more forgiving than forced air and the inexperienced homeowner assumed he was already in heaven...but it is better now.