I am researching vents and am down to a couple of manufacturers, Maxxair and FanTastic. I would like to get some opinions on either one with regard to form, fit, function, as well as reliability. Also I wanted to find out from the folks that have made the change in the bedroom if there is 12v available at the vent. I thought there might be as it is pre-wired for air. But it might just be 110v. I would appreciate any input. Thanks!!!