Here's a shameless author giving five stars to their mediocre work. When it comes to writing quality, truth be told, my vocabulary is pretty average, I don't even speak English well despite studying languages, so there you go. I do what I can, and I like to encourage those who read my story to help me improve.
As for update stability, well, I won't lie, I'm quite lazy, and if I see that university demands more attention, then I'll just want to rest and procrastinate all day. If you like the story, give it plenty of support, so I'll be less tempted not to upload chapters.
The story's development is slow; I hate it when stories are so fast-paced that it feels like a friend is telling you something funny. I prefer things to take their time, so I can see what each character has to offer me.
In character design, I won't lie, I'd like to improve on that. Sometimes I feel like they're all too flat, so I like to imagine subplots that I'll later write to add more depth, although in the early chapters of my stories, you'll always see that everyone is quite reducible to a concept.
World design... It's DxD, so it's already pretty good on its own; that's something from the original author, not mine.
As a final note, I like edgy protagonists and all, but I also like them to be human, not seeming like a mere emotionless machine throughout the novel. So expect that here, even if the MC isn't the type to express themselves much, it doesn't mean they don't think about what they want, etc.
If you're looking for a lot of action, let me tell you, creating fights isn't my strong suit.
And if you like everyone praising the protagonist as the strongest thing in the whole world, so do I, although I'll try not to exaggerate with that, heh.