Needed shingle replacement on my rental property so I sought out a few estimates to get a feel for the differences in the market place. M&R were priced on the higher end of the spectrum but also offered a bit more. One of the quotes was less than half the price but nothing is in writing and they want cash. Can't trust that. What swayed my decision finally was the amount of detail in their written quote which far surpassed the others. One recommendation to improve it even better is to add line items to show exactly how they arrive at the quoted price. In other words, how much will the shingles cost, the nails, the vents, the labor, etc. That would provide complete transparency.
When the job was finally completed, some minor disagreements aside, the workmanship was top notch. They took pictures, before and after completion, and provided them to me. The site was spotless- not a wayward shingle or roofing paper to be found.
I would certainly recommend them. At minimum, get them in to quote.