@Mow - I know when you stop or have to stop playing a game it's hard to get the motivation to pick it up again but I hope that you can someday.
Completed Amane's route so now finished the VN, and this one was was my favourite, it does a very nice job of completing the circle in terms of the story and we also get an insight into the VNs antagonist who was rather one dimensional villain until this route.
There is no "True ending" as such but for my part, Kotori (which has to be completed to open certain other routes) and Amane are the essential routes with the others more optional and Amane is best saved to last as it comes the closest IMO to a true ending.
Being still new to VNs I'm still feeling my way and as a n00b to this forum I have to point out I still find the teen romance elements for the most part a little dull - it takes I think some special story writing to engage my interest in the way that Tomoya/Nagisa and Steins;Gate spoiler Okabe and Kurisu, which helps to add such a cruel dilemma to the story and I did as usual find some parts of the routes went on too long.
I spent a fair time on MS Flight simulator in my past so I appreciated the inclusion of aerodynamics as I felt this helps the reader believe that High School students could achieve what they manage here. I understand that slight spoiler Gliders riding the Morning Glory really is a thing in Australia where the phenomenon is predictable.
It's a pity that Ageha's route seems to have been messed up in the Steam version ( bearing in mind I know nothing of the Japanese or Restoration versions) and that is the only downer objectively but it's up to each prospective reader to decide if they want the full on eroge I guess.
It actually took me over 50 hours to complete all the routes, and as this is a lowish/mid price game on Steam, it's good value. I'd definitely recommend it.
Now I was hoping we'd have news of LB! on Steam by now, but looks like I need to find another game or VN in the interim!