I find Masataka rather boring and kinda pointless. I know people can argue that, but the series wouldnt be that different if he wasnt in. I dont hate him at all, just he's too dull. I'd like to see more of bob honestly, but it seems Oh! Great didn't do too much with him if this is getting close to the end...
Masataka is really a hard character to hate due to his personality. I mean he's defeintly not my favorite character but i don't hate him either. In comparison to Souichiro though Masataka is a boring character i think in terms of character development.