Stay away... I mistakenly signed up for their Service Partner Plan (SPP) thinking I was getting a good deal, they promised "VIP" treatment, annual check-ups and discounted service prices.
Prior to signing up for SPP, I had Precision out at my house twice to give me a quote to service my AC unit and both times they tried to sell me on the most expensive unit and suggested I completely change my system and duct work all together. I was told that if I signed up for SPP I would get a 15% discount on the upgrade. Not only that, while they were out, I was told that my high efficiency Triangle Tube boiler was installed incorrectly and I would need to spend $6k (with my SPP discount) to re-plumb the system. Strangely enough, the technician wasn't familiar with the Triangle Tube and had to go home to do some "research" before providing me with a $6k quote to re-plumb the system, and yes, the $6k included my 15% discount...
Luckily I got a second opinion and was told that everything was fine. My AC unit needed a minor overhaul and the boiler was in perfect running shape and plumbed correctly based on manufacturer specs.
Basically Precision was fishing for work and thought that I was another victim. Sadly, I see their trucks in my neighborhood all the time and I live in an area with elderly couples.
Long story short, I spent $238.80 for the SPP service plan and didn't get a single thing for my money. I just got my renewal request in the mail to sign up for another year, this is the first time I have heard from Precision since I signed up last year. Maybe this is what they meant by annual check-ups,,, they check to see if you will give them more money.