I'm building a house and had all but decided to install a 5.0 ton, 16 SEER, two stage unit. Then a guy who's building next to me said that he's heard the repair cost on two stage equipment is MUCH higher than single stage. Is this true? Do these systems break down more often? More expensive parts/labor?
Should I be concerned about this or can I count on 15 yrs with few problems?