I can't compare the two routes since I don't play the male MC.
I liked the game so far. There are several overlaps where people have the wrong gender (Eva for example switches multiple times from having a girl- to a boyfriend), but other than that, I enjoy the slower build up a lot.
There are slower developments with the older sister, but my main interest ist Alexis, and there is a lot content with her already. So coming back home and have more interactions with her (and her hot friend) is way more important for my playthrough.
I dislike that we have no choice but taking the nude pictures with the Asian sister, really would prefer to not have to interact with her at all, but that's probably a me-thing.
The slower development is balanced in my opinion with both the quality of the writing and renders.
And since FMC who are not just cumdumpster without any choices are the rarest exception in VNs in general, I take what I get.