5 Stars for Kirk Neel, the service tech who serviced, tested and demonstrated issues and concerns with my 3 HVAC units today in 95 degree heat. He showed me gauge readings for effectiveness of the units and identified 2 weakening, oily and rusty capacitors, and made repairs on the spot. He was professional, careful and even replaced my dyi screen covers (to help prevent cotton getting inside) on top of the units. Kirk educated me about the EPA related law changes and ozone effects for coolants R22 and 401a. Being on time and reliable was service icing on the cake. I highly recommend him and thank B. Carlson for hiring quality people.