Mann's installed a new furnace and A/C for me approx 25 years ago. Last year I decided it was time to upgrade and called on them again. Both times their service excellent and pricing more than fair.
Yesterday was a very hot day and as luck would have it, my A/C went out. I called for service and they were here within 30 minutes!!! Embarrassingly, it turned out to be user error (first time using a 4" filter and I should have replaced it sooner - it was dirty and blocking air flow).
Vinny and his entire stall are among the most professional, knowledgeable and personable people you could ask for. As you can see, I highly recommend them.