They were very efficient. Their workmanship was second to none. They started at 8:00 am and did not quit until 5:00 pm, which is very unusual. A guy across the road was having his roof done and they started at 9:30 am and quit at 3:30 pm with breaks and dinner. They explained everything before I started and when I went out they showed me what they were doing like locking the pieces in place and putting on the vents. They were very informative while they were doing it. I own a business and they are one of the best I have ever dealt with. The prices were competitive. I have had all kinds of compliments from my neighbors. They did a great job!