I have been having my knives sharpened at The Knife Doctor for the last two years, and the service has always been prompt and friendly. The quality of the sharpening has consistently been the best I have seen, even with the difficult blade types I use for my work.
On my first visit, during which I only browsed, the owner taught me to use a steel to sharpen my own knives. I have found this type of educational service to be all to rare. Has your mechanic ever offered to teach you to change your oil?