Danny Welbeck has scored five times since his £16m move
Welbeck joined the ranks at Arsenal in the summer for £16m in the summer from top-flight rivals Manchester United, scoring five in 12 games since.
The 23-year-old failed to live up to his potential at Old Trafford, but Arteta believes he can continue to grow in his new surroundings.
"Danny is the perfect fit for us, [with] the kind of character he is and the kind of player he is," Arteta said
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"Personally I have been surprised by his technical capacity, the way he understands the game, his work rate.
"I rate him more now than I used to and this is a good sign because normally the opposite is true when you watch a player on a daily basis. I'm glad he is with us.
"He has got everything here to become one of the best strikers in the Premier League."
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