We called AC Furnace Depot after another HVAC repair company only offered essentially replacement of our entire system.
Contrary to the opinion of the other company's technician, the AC Furnace Depot technician indicated the problem required a simple fix, and reassured us our HVAC system was actually in great shape, was very powerful, and should last us well for another decade.
So, for a few hundred dollars (compared to the other company's estimate of $2,000-$8,000), our problem is solved and we don't need to buy a whole, new system.
We enjoyed the friendly, same-day, professional service, as well.
I would recommend AC Furnace Depot to others.