I use various usability platforms, and this is by far my favorite. I have been using it for around 2 years and have been able to make several hundred dollars each month that I can use towards vacations and home projects! I love it because of the variety of test opportunities, payment reliability, flexibility to use both phones and computers to complete tasks, and ability to earn more money through moderated sessions. The more detailed the feedback you give, the more you will receive invitations. It's a great way to learn about new products and services, and if you are good at thinking out loud and reading tasks carefully, you will see a steady stream of opportunities for tests!