Very well. They took off the old, failing roof, saw that the wood underneath was roted, and replaced all. They called me for approval on new problems that they found, rather than just proceeding on their own (also, they told me not to replace a part of the roof that was still in good condition). I inspected the roof afterwords, and it looked like they did a robust, quality job. No leaks. I noticed they forgot to replace the gutter screens, but they came back and did so after one call. The workers were polite and prompt, and cleaned up after themselves.