I've had mixed experiences with AutoFair over the past twenty years, and I'm in a good mood, so that tips the scales to four stars. I bought my first real pickup truck, a 1999 F-150, there new in '98 or '99. I loved it, and the experience was a good one, so two years later I bought a 2002 that I loved so much I drove it until 2017, when I bought a third. In the intervening years, my family purchased multiple vehicles from AutoFair, and had several opportunities to experience their service departments for standard service, repairs, etc. My experience with the Ford department, in sales and service, has mostly been good, but they failed to apply a major corporate discount (that they made a big production about) to my young daughter-in-law's first new car purchase in 2018, and she didn't realize it until weeks later when it was too late to do anything.
The Kia finance guy a few years ago literally told one of my sons he hoped his new car broke down when he declined the extended warranty after they made him come back because they screwed up the paperwork. I was so furious that if I didn't despise Best Ford in Nashua so much, I never would have gone back to AutoFair at all. The Ford department rescued the relationship with a positive interaction.
So, still four stars after all, but just barely, and mostly because I'm not a fan of car dealerships in general, so I'm trying to keep that in mind and be fair.