Re-Roofing

We had our house re-roofed in 2021. We have a fckn steep roof pitch. (don’t know what the actual pitch is, but it’s way too steep for me) Got 3 bids from local roofers. Hired the company that’s rated as one of the best in the region. Their price was in the middle. $14,772. (no idea how many square of shingles was needed. They replaced a total of 5 sheets of plywood @ $100/sheet (in bits and pieces) where they found rot.
Their trucks rolled up, about 40 mexicans jumped out and went to work. By the end of the first day, the old roof was off, repairs were made, new underlayment was down and about 80% of the shingles were in place. Came back the next morning and they were done by noon.