Surveytime seems like a no-brainer if you're just trying to bank a little bit of extra bitcoin in your down time. But once you go through the exhaustive process of signing up (including giving them a lot of personal demographic info about yourself) you will likely find that the payout of a dollar isn't worth the time it takes to have the privilege of taking the survey. Because these are intended for targeted marketing purposes, Surveytime tried to make sure that you are the right demographic fit and you can easily spend 15-20 minutes of answering questions unrelated to the actual survey only to find out that you are not the target demographic and you get kicked out to the "Take another survey" screen. That means you just wasted 15 minutes answering questions and never even got to the real, paying survey. To top it all off, Surveytime doesn't even acknowledge the time you did put it. I think I've completed just 1 20 minute survey out of about 30-35 attempts. There's even a few surveys that I was allowed to start, only to be kicked out of it later. One was about car brand perception and purchasing. I got about 10 minutes into the 30 minute IPSOS survey and then was kicked out with no explanation when all I did was say that my next car purchase would replace a car I already owned (seems like a really benign reason to kick someone out). And this happened after I spent 10 minutes "qualifying" for the survey.
Be prepared to have your email inbox spammed. I call it "spammed" because I don't know another word for a website that emails you (it seems like) almost hourly, and then wastes you time by not letting you into any of the surveys that it says they just matched to your profile.
So now for the good: The one time I did get to complete a survey, they did pay promptly and, of the dollar they paid,. 96 cents worth of bitcoin was deposited into my Coinbase account. Of course that was after 4 days of trying and hours of time wasted. Hardly seems like a good trade.