Spew or good bluff and explain why!

[Insistent_]

This is from a Swedish poker site. This would correspond to $1/2 blinds NL. Opposition is usually loose/passive. Martin999 is unknown.

***** Hand 384836820 *****
7.50/15.00 Texas Hold'em (No Limit ) - den 19 juli 2007 16:39:45
Frida Turbo 7 (Vanlig /Cash Game )
Seat 1: HERO (1540.00)
Seat 2: marwan62 (1538.30)
Seat 3: Martin999 (1541.10)
Seat 4: wp_fish (3342.50)
Seat 5: pizzaboy (528.40)
Martin999 pays SB 7.50
wp_fish pays BB 15.00
** Giv **
HERO [9h, 7r]
marwan62 [N/A, N/A]
Martin999 [N/A, N/A]
wp_fish [N/A, N/A]
pizzaboy [N/A, N/A]
*** Bet Round 1 ***
pizzaboy Fold
HERO Raises to 60.00
marwan62 Fold
Martin999 Calls 60.00
wp_fish Fold
*** Flop(Board): *** : [6h, 10d, 9c]
*** Bet Round 2 ***
Martin999 Checks
HERO Bets 88.00
Martin999 Calls 88.00
*** Turn(Board): *** : [6h, 10d, 9c, 5c]
*** Bet Round 3 ***
Martin999 Checks
HERO Checks
*** River(Board): *** : [6h, 10d, 9c, 5c, Ah]
*** Bet Round 4 ***
Martin999 Bets 210.00
HERO All-in 1392.00

[Hattifnatt]

spew, he might very well have a big hand and would prolly not c/c a good ace on the flop nor betting a ten for value on the river etc.