The estimated time for a survey will be five minutes, but by the time you do the "pre questions" to even get to the survey it's been fifteen minutes, and then the survey takes a half hour. They are a train wreck.
But since they improved the option for daily points, it's not as bad. Earning points for printing coupons, then combing them with sales or Ibotta is a good way to earn gift cards and pay very little for groceries.
Totally worth signing up and using. I recommend this site often.