I meant to leave a comment here a while ago, since I did end up playing through all the content available (a couple of times), and I really enjoyed all of it. I have a few peeves with the writing/characterization, but they're honestly quite insignificant, and I could see how some of those elements I didn't quite love serve to either set the groundwork for future developments, or keep the pacing of each route more manageable in terms of how relationships evolve over time.
It's very refreshing to have a cast of characters where everyone is likable in a distinct way. It's rare for me to find a VN where I can clearly tell "yeah, he's definitely not my type", yet still feel compelled to know more about them and be friends with them, whether to see how they'll act as their feelings change, or how the group dynamic might change in the long term, since one of the most enjoyable aspects of Cor is seeing these characters interact with each other, care for each other and share their experiences, be them joyful or otherwise.
On top of that, and on a more personal note... it was hard not to feel a certain connection with the setting and with Robert, having strong feelings of nostalgia for seaside towns, and relating to him for a number of reasons, among other things that made me feel quite immersed while I was reading.
All this is to say that I'm already missing Cor, so I've been writing a dumb self indulgent Mike fanfic for a while just to fill the void while I wait for an update :x
Keep up the good work!