After considering several other roofers, I chose Diaz Roofing because of the glowing reviews from others, the fair price, and their promise to complete the job in one day. The team of maybe 12 people arrived promptly, and worked for about 8 hours. I was impressed with their system - everyone knew their job and completed it efficiently. They worked hard, and fast. Again, the idea of reroofing in a single day was very appealing to me. However, in hindsight, I wish that I had chosen a company that perhaps had taken more time ensuring they were doing a quality job. There were a number of details that I noted after the fact that disappointed me. There was putty put over nails that were used to secure the shingles in various areas, on top of peaks for example. Well, the putty used was a very light color, which was a huge contrast to my gray shingles. So, in the areas which are visible and I look at often - all I notice are those whiteish dots on my new roof. I went on the roof about a week after the work was completed and I was shocked to find loose nails on the roof. To me, this is very careless. Our old drip edging was taken off and new was installed. I wasn't thrilled with how a lot of it was installed. Some of the angled cuts weren't the greatest, some was not laying flat - a lot of it just looked like it was carelessly done. Carelessness like this makes me question how other, not as visible, work was done. Finally, in certain lighting there are bulges noticeable in many, if not all, of the roof valleys. I did some research and see that this is a "closed valley" technique in which there are overlapped shingles. It likely serves the purpose of preventing leaks, though the bulges do not look nice. But again, they're really only noticeable when the sun is in the right spot. I am not blaming Diaz Roofing for the bulges, as I'm sure at some point I was told how the valleys would be done. But, I will say I was not expecting the bulges that I see. Diaz Roofing likely would be able to do a satisfactory job for others, unfortunately, I just felt like they weren't the right fit for a perfectionist as myself.