Ken has been my building's plumber for at least a decade now, I believe, and he's just the best. We've never had a problem he hasn't been able to fix, and he leaves the setting just-like-new every time he does work in our home. He patiently answers my questions and explains what he's doing when I ask, which I appreciate--I've learned a lot from him about my home works. He's also provides great customer service! Friendly and warm, but unobtrusive when I'm in the middle of something else and can't be present. I'm a huge fan!