Rin is too cute in this agreed. I like this OT3 because they all seem to love and appreciate each other. If it works it works.
Couldn't ship an OT3 involving Eli and Nozomi because I feel very strongly about their relationship together and in my eyes can only see NozoEli being end game and the third person being left behind cause NozoEli's love is too strong. But this OT3, I like. I also wouldn't mind NicoMakiRin if the chemistry between Rin and Nico was written well and believable (similar to this).