PAHWM $2-5 NL

This hand came up a few days ago and I've been really going back and forth in my mind with it. Would appreciate feedback from other members on this forum.

$2-5 NLHE at Bally's Casino in RI, buy-in is $200-800.

Effective stack with main villain is approx. $600. A few items of note, this game typically has lineups of loose, sticky players who once they put a chip in the pot will rarely fold without seeing a flop. Also, this room has a regular $5-10 and $10-20 game that runs daily, leaving the $2-5 game as sort of an in between mix of players waiting for the bigger games as well as some short stack "shot takers". OTTH.

Blinds are $2 and $5, no straddle. UTG1, 2, and 3 all limp in for $5. Hero looks down at Ah5h and....