Hey new to this board have a question on this line.

40/80 live game 10 handed at a private club. I'm on the button. Game has one or two TAGS who I've played with many times and they are in middle position. BB is a maniac who plays any two to see the flop then miss plays every hand. I'm on the button and get AJs. folded to CO who limps I raise SB and BB cold call CO calls. Flop comes A 4 6 rainbow. Checked to me I bet SB folds BB calls CO folds. Turn is a K completing the rainbow. BB bets I raise he 3 bets I call because something didn't feel right. River he bets I call. Comments...