PokerStars No-Limit Hold'em, $0.02 BB (8 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

MP2 ($1.95)
CO ($2.28)
Button ($5.36)
Hero ($2.24)
BB ($2.90)
UTG ($1.94)
UTG+1 ($4.21)
MP1 ($2.91)

Preflop: Hero is SB with A, 3.
1 fold, UTG+1 calls $0.02, MP1 calls $0.02, MP2 calls $0.02, CO calls $0.02, Button calls $0.02, Hero completes, BB checks.

Flop: ($0.14) T, 4, 2 (7 players)
Hero ??

Obviously a great flop but how should I play it being first to act: bet/raise, check/raise? Should I be happy to put it all on the flop?