Plain and simple, I think Trane makes one of the best conventional HP systems in the residential marketplace.

You have been quoted the top of line var speed communicating HP condenser which will take Trane's proprietary communicating thermostat.

What is your location?

For comparison purposes, I would get a price on their XV18i model as well as XR17 and XL18i model with TAM7 air handler.

IMO