The 29-year-old has netted 24 Premier League goals in 35 appearances, as well as setting up seven.
“For a midfielder he's a dream," Wilshere said on Sky Sports.
“He came in January last year and I played with him for the second half of the season.
“He makes runs and he gets frustrated when midfielders don't find him.
“But he does it consistently throughout the game, he will make three or four runs a half that are crying out for a ball to be put in behind.
“Defences in the Premier League will hate that.
“As a centre-back, the last thing you want is a quick player who runs behind and he does that."