My experience has been that M+ isn’t that bad to use and is fairly easy to pick up on.
I used it for about 3-4 weeks before I decided to go back to the old HTML version. Why? Because it’s easier and better at this point. Why suffer through a subpar product until I have to?
It’s like going to a restaurant and ordering the tofu because eventually they’re going to run out of prime rib. I’m not eating tofu until I have to.