So they have all 3 chapters from the main story and two one-shots (chapter 5 and 4).
The main story was pretty cool, had an interesting/appealing premise, but even though all the chapters from that story have been released, it still feels like it's quite unfinished, there's something lacking, all the relationships weren't properly developed (even though they're deeply intertwined), it just seemed like a teaser or a pilot for a future series. Was quite disappointed for that, actually.
I get this strong feeling that I've read Chapter 5's one-shot somewhere else, but I cannot for the life of me recall. It was rather cute, played with people's preconceived ideas on others based on minimal exposure, and what it takes to accept them for who they really are. I liked it a lot.
One-shot from Chapter 4 was actually more like a prequel to the main story. It talks about Momoka and Chitose's relationship before anything from the main story ever happened. It wasn't bad, but it still felt lacking; much worse after knowing how the main story develops.