Is Mturk worth it? Is it difficult?

I've seen people post about Mturk, and I'm always looking for ways to make extra money (which is obvs why I'm here.) The explanation about the site is kinda weird, but I got approved and just need to verify my identity. Before I go giving Amazon all this information about me... is it worth it? Compared to things like Prolific, Usertesting, etc, is it difficult?