Got through a good chunk of Greenpath today and fought Hornet for the first time. I think my abilities are limited, so there are a lot of area that I haven't been able to explore, but I'm looking forward to going back. I really dig the artstyle and character/art/boss design of this game. Everything feels generally lush and lively, and that feels refreshing. Also from what I understand, this game is huge. I don't think I've even scratched the surface, and I'm actually excited to see what's in store. Lately I've dreaded playing games of a large scale, so it's nice to have that feeling again.
Yeah the first couple of hours are a bit slower just because your traversal options are so harshly limited at the start. The next thing you get opens up the game a lot more.
It really is a big game. The number of times I found a new area after thinking I had been everywhere was crazy. (Also as a general tip, if you double tap the map button it opens the world map.)