flopped bottom set, 200NL

[dstraff1]

I was actually cutoff in this spot holding 99. Given previous reads I had him on a lower set, but wasnt sure how to extract the most money from him. I ended up betting 150 on the river and got called by his 22. I felt that he could have played a different line on his hand. How do you think the cutoff played it? I feel my river bet was weak and could have gotten more money.