I don't mind a once in a while survey, but Marriott seems to send me one every stay now. Instead of looking at it as great customer service, I now view it as a real burden to fill it out, so I don't do it unless something was really wrong with the stay. Marriott doesn't offer me anything (like POINTS) to fill the darn thing out, so I am not going to waste my time with them any more. It is just an imposition in my mind.
Djlawman