Zehnder Comfoair comparison

[SuperPav]

Can anybody please advise on the following:

 

Zehnder 350 vs Q350

 

Am I right in understanding that the 350 cannot have the fan speed set on the actual unit, and requires an additional external controller, whereas the Q350 can be set on the unit itself?

 

I don't plan on having lots of controls in the house, the idea would be to just have a timer boost switch in the kitchen and bathroom if required, but I suspect we'll just run it on a preprogrammed mode most of the time. 

 

The price difference between the two units I can get for is about £500, but if I need a Comfosense C67 controller to set up the fan speeds on the 350, that is £130-odd just on its own so the price comes down even lower so it makes sense to consider the newer Q model...