Price and quality.
I had 4 previous quotes and they were expensive and confusing. Tucker Hill's quote was direct clean and honest. I worked with Lucas and he was very forthcoming and worked within my budget with explaining and answering all my questions. I purchased a Bosch vs, Trane, American Standard and Goodman. You really need to get educated and watch you-tube and read reviews before you make your decision. It takes time but in the long run you make the best decision that you can afford. What was important for me was I wanted a quiet unit.