Prima 5/10 Thoughts on this KJs hand?

[Rocaix]

6-max game, Villain is decent, sorta loose maybe a bit passive, and haven't seen him get out of line with marginal stuff postflop.

I have 1500, he has 1400.

I open for 40 with K [img]/images/graemlins/club.gif[/img],J [img]/images/graemlins/club.gif[/img] from the button. Villain calls from BB.

Flop comes K [img]/images/graemlins/diamond.gif[/img], 7 [img]/images/graemlins/club.gif[/img], 5 [img]/images/graemlins/club.gif[/img]

He Checks, I bet 70, he calls.

Turn is J [img]/images/graemlins/diamond.gif[/img]
He thinks for a while then bets $60, I make it $260, he quickly calls.

River is 9 [img]/images/graemlins/club.gif[/img], He checks, I think for a while and bet 350, he pushes, I run out my timer and muck.

Standard boring stuff? Thoughts on my play, his play?