The Morocco striker has struck twice in his first four games for the club.
"Iâ€™ve settled in quickly and things couldnâ€™t have gone much better from that point of view. I gave myself six months or maybe even a year to settle down here and Iâ€™m ahead of schedule in that respect. Iâ€™m delighted with how itâ€™s going although training has been very tough for me," Chamakh told fifa.com.
"I donâ€™t think Iâ€™ve ever worked as hard as this physically, but here I am experiencing everything Iâ€™d envisaged about Arsenal and the English league. The atmosphere in the stadiums, the open and attacking football and the standard of the team are just amazing. Iâ€™m getting involved in the games and Iâ€™m scoring too. Iâ€™m so happy "