NL400 - Not sure about my set line (probably awful)

[Burdzthewurd]

NL400 4-handed

Button has $50 and is a SSer, I have $500 and Villain covers. Villain is fairly solid, plays a good deal of short-handed, but not overly tricky post-flop except an occasional check-raise on the flop with TP or better. He generally doesn't slow-play much. Should I be betting more/less on the river or at all? Probably bet/fold? I'd usually raise pf but I really hate doing that with small pairs then seeing a SSer l/r AI, which this guy has done a few times.

UTG folds, Shorty limps, Hero completes SB with 4[img]/images/graemlins/diamond.gif[/img] 4[img]/images/graemlins/heart.gif[/img], Villain raises to $15, Shorty folds, Hero calls.

Flop Q[img]/images/graemlins/heart.gif[/img] 5[img]/images/graemlins/heart.gif[/img] 4[img]/images/graemlins/club.gif[/img] (pot $48)

Hero checks, Villain bets $32, Shorty folds, Hero calls.

Turn A[img]/images/graemlins/heart.gif[/img] (Pot $112)

Hero bets $70, Villain calls.

River 7[img]/images/graemlins/diamond.gif[/img] (Pot $252)

Hero bets $150..