I wouldn't always raise AJs from SB, but I would against a CO limp. AJs is a great hand to play heads up, and I don't want to give away free cards to the BB. Also, taking initiative pre-flop and C-betting this board is fine.

As played, c/f the river. I might call a bet of $0.20 or less. TPGK on a paired board is not that amazing, after all.