The one that started it all. I read this around the time it was completed. All routes, and from what I can remember, I found Flynn's the most interesting, but it's also a bit unfair to pick one. All the routes make the story whole, and that's ultimately what makes Echo what it is. Well, one side of it anyway, the other being the actual plot.
I won't go into too much detail. I remember going into it with a mindset of "just another dating sim" and being surprised it had actual intrigue, which is good. It's not my top favorite, I'll say that much. Younger cast just creates a disconnect, so I was mostly here for the actual plot and lore, which was interesting. In the end, I ended up liking it, and I'm certainly not saying it's bad. After the initial shock of certain events faded, that's what I was left with.
Just a little bit of perspective from an older reader I suppose. Someone who values plot and characters in a story. I would say it's one of the better VNs.
I hope everyone involved is doing alright, and I hope that none of you, the fans, will take my little opinion too harshly. I'm not here to insult it, just to share my thoughts.
Take care, and thank you for creating something that still has me thinking about it here and there.