Sorry, but from a freelancer's point of view, this is a terrible income source. Most of those jobs only pay you $10, $20, etc. and oftentimes, a freelancer needs to make thousands of dollars a month to make a sustainable living.
If it is indeed $10, $20, and so on for very menial jobs, that would be good enough, especially if the jobs are always there waiting for takers. However, I doubt it is as high as that or that there are enough jobs for everybody. But if there are and it is as high as $10 more or less, you could still make hundreds or even a thousand in a month. $10 in a day is already more than enough to a lot of people in many of the parts of the world.
Anyway, I found this: https://www.beermoneyforum.com/threads/microlancer-reviews-scam-or-legit.38202/. Someone is saying, "some people earn about 1 to 2 bucks a month." If this is the usual amount a person could earn, personally, I think it's a waste of time.
But huge respect to the developers for using Bitcoin as well as the Lightning Network for this site. I hope this site will get more and more patrons soon.