There are a lot of screening options so you have a lot of opportunity to do a test. However, some of the screening includes 15 or more questions. Your chances of getting through that many questions is very small. Also, the $1 tests that are offered will often have 30-40 questions once you qualify. That is too many questions to earn $1. The amount showing for my 'Reward Total' on the User Testing site often goes down for some reason. I don't think the totals are accurate. Also, reviews are so random. I often don't get one for months and then when you do, it's difficult to remember which test the review was for.