I have to say, some part of me is wildly unsatisfied with this ending and left wanting more. I know I have my yuri goggles on now, but I really thought/wanted something to be between hotori and satoka more than hotori and chika. I loved the affection and hugs and smiles throughout this entire series, and the art was great. But I still feel like, for me, something is left to be desired.
Agreed with others that it seemed to be a very unexpected and abrupt end.