John was a huge help! He called me back almost immediately and when I described my problem (safety sensor detached) he said he didn’t want to charge me for such a simple problem, so he sent me a YouTube video that showed me how to correctly re-attach it myself. Now how can you improve on that??? The reason I called him is because, over the years, he’s done several service calls for a very good friend of mine. My friend highly recommended him and I see why! I will definitely call John again if I have a bigger problem.