It's another instrument (like lotteries) whose main value is to make money for the founders. That has a use, yes, but if you're outside of that system I'm not sure the mainstream value is that great.
I can tell you that the team is the least diverse (not just race/gender but in age/possible life experience) I've ever seen, which doesn't bode well. How different can their perspectives be?
https://makerdao.com/team/
The vast majority of those apps are cheap moneymaking schemes. Again, they have a place, but I'll very much take a wait and see approach, which I believe is realistic and more than warranted.