I am getting a new infinity furnace for use in combination with a heat pump. I have a choice to upgrade to the ICS for some extra money. Given the number of duct runs on my main and upper floor, the ducts will match the CFM of the furnace uncomfortably closely (e.g. there will be a chance for too high static pressure). I plan to run the blower constantly in combination with some kind of media air filter (hepa with fan, or merv 11 or 13) and an HRV or ERV. I have allergies and hope that the circulating air will help. My question is: Will the ICS furnace offer any advantages other than precise temp control (a feature that is lower on my priority list than, say, saving the amount it would cost to upgrade to the ICS)? Does the ICS offer any other features? Will it cost more in the future to maintain if something breaks?