If it comes up in conversation most people think it's pretty cool. Two brothers use DE razors and another uses the fanciest most blades possible Gillette. One of the brothers who uses DEs visited recently and saw my razor and gear and now is thinking of making the switch. The Gillette using brother thinks we're all crazy. Our father doesn't enter the discussion - he has had a full beard for nearly 20 years.
The best reaction so far was that of my thesis adviser. In his introduction of me at the start of my defense this past June after listing my academic credentials and mentioning the languages I speak he then added that I give myself my own haircuts and shave with a straight razor. The room erupted with laughter.
Maybe I should list SR shaving under special skills on my CV.