EARN MONEY QUICK : Userlytics / is it really worth my time for user testing?

I'm thinking about trying user testing sites like Userlytics to earn a little extra cash, but I don't know what the real experience is like. People say signing up is easy, but is that actually true? Are the tasks straightforward and quick, or do they take longer than the pay makes sense for?

How good is the pay per test, and do you get invited to tests often enough to make it a dependable side gig? If you use Userlytics, what was your experience? Any tips for getting more tests or passing screeners? Would you call it a legit side hustle or just a time sink?