I'll be honest, I didn't expect it to be this interesting, just 4 chapters in.
I was expecting something sub-par, even compared to the other isekai/transmigration-into-Elf mangas... It's similar to another, and that's about it. I'm expecting it to pan out a bit like the other series, but with far more little details comparatively. A young boy-turned-elf going off on an adventure to become an adult elf, with particular companions, a bit like Doctor Who, but more childish.
I'll keep my eyes open on this, because it REALLY seems interesting and adding more and more depth. And yes, I'm sure it's another "OP MC" style, but then again, he's been literally training for 100 years in the first 3 chapters in magic and physical capabilities... now we get to hopefully see how he pans out as he learns more and more about the world he walks out into.