BEM in a nutshell: interesting world, interesting powers, and interesting characters, but shit love development... Like seriously... it's like reading a 3 year old kid's fantasies... And yea, I'm talking about the latest chapters... Otherwise? 8.5/10 would recommend to read.
For sure BEM is a enjoyable ride, but obstacles solely fuels the MC's plot armor. There's really no consequences even under the threat of dying or facing a sword master. MC is just too op and SUCCEEDS in every way possible. He's a clinched hero. Also the development of the MC's character is really poor. He's more like a symbol vs a character. Side characters don't get any development at all. No one has changed or grown from chapter 1. Yes, some of them have grown stronger, but we never get to learn about their personality except they love the MC. BEM is fun but it doesn't live out to it's full potential.