My new air conditioner is truly a work of art! I obtained several proposals and while most of them were within a few percentage points of each other in terms of cost, I chose Efficient Home Solutions. There were several reasons. First, David took the time to show me the math about my CFM airflow problem. I have been short about 800 CFM all these years and it's probably why my other unit wore out after 12 years. I got a 5 ton Lennox unit and David explained the differences between it and a comparable Trane (which I had previously installed). I think having a local company with access to parts in the future was a great reason to pick Lennox. The unit is a beast. Secondly, David brought his installation manager who carefully inspected my attic space and location of new return ducts. No one else brought theirs. This made a big difference because there would be no question as to what would work space-wise or not. Third, David also answered all my questions professionally and even explained many details I hadn't thought of (nor did any other service provider). I really like my Nest control and this unit cools within 40 seconds, and after 2 minutes, it's freezing! The family room is facing the hot west sun and now we can't even tell it's hot outside. I highly recommend them!