Had about 50 hands on villain who has 6% vpip with 4% pfr, all i've seen him showdown is QQ where he raised pre, then went bet/check/bet on J high board. Should I be calling purely for set value preflop here?

PokerStars No-Limit Hold'em, $0.25 BB (6 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

saw flop|saw showdown

UTG ($25.50)
MP ($14.35)
CO ($33.10)
Villain ($23.95)
SB ($46.10)
Hero ($30.20)

Preflop: Hero is BB with J, J.
3 folds, Villain raises to $1, 1 fold, Hero calls $0.75.

Flop: ($2.10) 7, 2, 9 (2 players)
Hero ???