We have two trial systems using the Hive multi zone system. The results at best are patchy! The concept is similar to Evohome ( which has its issues), but Hive connectivity does not compare to Evohome. From a pricing perspective the valves are the same price - the saving with Hive is only the difference in price of the control unit.
If you are not familiar with these type of systems, you really need to price the installation and two further visits. User expectations are often very high and return visits to re-explain the system or resolve connectivity issues are ( in our experience) the norm.
Specifically with respect to Hive make sure that the valve bodies are undamaged (the threads and pin in particular ) and compatible with the Hive actuator. If the pin is stiff, the actuator won’t drive the valve (Honeywell have a high power setting for “sticky” valves).
As a business, it ( valve controlled zoned systems) seems to be a booming market. We are fitting three times as many now (two to three a week) as we were 18 months ago.