We're working on a new construction project for Long Island, NY and are considering a change to one of the systems noted in the subject line, versus the standard split system. However, we're having a hard time getting feedback from owners/managers who have these systems installed in multi-family buildings. Listening to the sales pitch from each vendor doesn't sell me - info from users is what we need at this point. Anyone out there have these energy efficient systems installed? If so, can we get feedback on the pros and cons? Thanks so much for any information!14811