Opp's HUD stats were about 23/14/2.5. How is this line? Check behind on the river or value bet?

Full Tilt Poker
No Limit Holdem Ring game
Blinds: $0.10/$0.25
9 players
Converter

Stack sizes:
UTG: $16.25
UTG+1: $39.60
MP1: $27.95
MP2: $11.10
Hero: $26.05
CO: $22
Button: $8.25
SB: $13.65
BB: $34

Pre-flop: (9 players) Hero is MP3 with A Q
UTG folds, UTG+1 calls, MP1 raises to $1, MP2 folds, Hero calls, 4 folds, UTG+1 calls.

Flop: 3 A T ($3.35, 3 players)
UTG+1 checks, MP1 bets $2, Hero raises to $5, UTG+1 folds, MP1 calls.

Turn: 9 ($13.35, 2 players)
MP1 checks, Hero checks.

River: 5 ($13.35, 2 players)
MP1 checks, Hero bets $4