It's a hilarious story with a bunch of good characters. Think of the little brother from Squid Girl, but all growned up. I like the MC, rarely do you find good MCs now and days.
Problem: I hope the Romance ends as a open harem ending. I think it's most suitable as this was never truly meant to be a Romance. I'm sure most of us didn't even know who the 'Main Heroine' was on the first chapter since all three girls are strong characters and strong roles in the story. I had no idea who i should had been looking at. They all scream 'Main Heroine' that's why i think Open Harem is the best ending when you consider all aspects.
I also think that there's starting to be a lot of fan-service lately. I noticed that switch at the near ending of Squid Girl as well. I guess it does bring more ratings and at least it's done naturally. But it's getting too repetitive lately as well that you can predict where it's going!