There was a big Thing in the neighbourhood I live in (built ~15 years ago) where this kind of two-way ventilation system did not work correctly; it did not have the right capacity on the one hand, and was too loud on the other (meaning people shut it off). But they're so well insulated that that was not an option.

My house has a one-way ventilation system, air is sucked in through vents in the windows. We keep it at the lowest setting though, again because of noise, but that seems to be all right for us.