Pros
Good place to get some field experience and to learn what to look for when you search for a new employer. Other than that there really isn't much.
Cons
Was hired a few months before I graduated Hvac school. Was told they have in house training, no pressure sales, friendly work environment, ect. Training was 3 days/week for an hour before work on up-selling and quotas. We had to recommend 3 up-sales on every call and if the customer had a unit 10 years or older then we were required to try and sell new equipment. There prices are outrageous, so much so I felt guilty even quoting anything. It's shameful to charge a little old lady on little income the prices they had. I had on a few occasions referred them to other companies who charged fai prices. I started looking for another job after 2 weeks. There are some good residential hvac companies out there but I found a great job in commercial hvac service. I'd never do residential work again.