I used to do the surveys on a fairly regular basis. I would not always qualify, but I would know I didn't qualify after 3-4 questions and would be given a small amount (usually 25 cents). Lately when I take the surveys I will answer questions for 15-20 minutes and have even been at the end (sometimes there is a bar graph that tells you how far into the survey you are) when suddenly I will be told that they have enough people already. When I have written in it the response (which used to be same day when I had the rare problem before) now takes weeks, and the response basically blames you for something unspecified and you don't get credit. I have been doing surveys for years (I used to get Borders gift cards!) and had always found them to be professional and fair in any interaction. I would not recommend them now.