Stars 36+3 350K Qualifier

[Rednax]

If this was a different, lower-entry-fee tournament I would probably not question this hand, but I'm new to Stars and at this buyin level thought the quality of play would be pretty good. I'd appreciate any comments on the play (what are they representing, etc.?) and then after looking at the actual hands at the bottom, what would be the best lines of play for both players?

Seat 1 has played many hands in the first couple of orbits, Seat 7 has not.
Seat #7 is the button
Seat 1: (1160 in chips)
Seat 2: (3140 in chips)
Seat 3: (1310 in chips)
Seat 4: (1560 in chips)
Seat 5: (2770 in chips)
Seat 7: (1420 in chips)
Seat 8: (640 in chips)
Seat 9: (1490 in chips)
Seat 8: posts small blind 10
Seat 9: posts big blind 20

Seat 1: calls 20
4 folds
Seat 7: raises 60 to 80
Blinds fold
Seat 1: calls 60
*** FLOP *** [2s Kh 3s]
Seat 1: bets 340
Seat 7: raises 1000 to 1340 and is all-in
Seat 1: calls 740 and is all-in

Hands revealed below:
<font color="white"> Seat 7: JcJh
Seat 1: Ks4s </font>