One thing that strikes me is his complete lack of pace, you'd honestly think he was 10 years older. People were talking about his aerial ability but I can't remember him winning anything which was disappointing. That missed chance was unfortunate but I saw some great movement so I won't jump in with people here and call him the next Chamakh. I'd love to see him work a bit harder to be honest as it didn't look like he even worked up a sweat at times.
Why do you think Wenger keeps trying to find a target man that fits his system? They always look out of place. A false 9 like Van Persie seems like a better fit for the way they play.