She's both powerful and intelligent, talented and hardworking, serious but not stiff, and she has a full emotional range. Her ambition to become Hokage defies the legacy of her family, and her obvious mutual crush is fully supportive of her dream despite himself being the son and grandson of Hokages. Neither of them are fawning or simpering. They respect each other and it's very refreshing after the dysfunctional and unhealthy obsessions of their parents.
That's great and all, and if another writer is writing Boruto, maybe it has a half chance at being good, but I don't really believe in good characters in a vacuum. You can make an appealing personality in a vacuum, sure, and that's basically how you are trying to sell Sarada.
But if a character is well written, that quality is going to be pervasive of not just a single character, but the narrative as a whole. So if I were to sell Midoriya, I would sell him on the same terms I'd sell the entire manga: That it's a realistic, believable coming of age story framed in a superhero context full of characters who feel believable, have depth to them, and change as the story goes on.
That description fits not just the main character, but Midoriya, Bakugou, Ochako, even usually unchanging figures like All Might or the villain Handyman (I don't think I'm ever actually going to learn his real name). Describing Midoriya using just his basic personality traits (loyal, brave, clever, well intentioned, has insecurities etc) wouldn't actually tell me anything about the quality of writing, because I've read both fantastic and awful stories about that.
But anyway, you you don't have to sell me on Naruto (or in this case Boruto). Naruto was my gateway anime and manga, so it occupies a special place in my heart, despite it's horrific end. I'll come back to it one day, just as a way of closure, and continue to read Boruto just for the sake of completion. So I'll get to Sarada eventually. Good to hear that apparently the poor sap that got stuck with that Donald Trump campaign-esque dumpster fire that is the Naruto world is doing alright for himself.