Chadli produced two goals and two assists in the 4-2 win.
"He's steady on the ball, he keeps the ball, there's no rush with him at all," said Pulis. "He's nice and comfortable, he's got fantastic feet and he sees a pass.
"Although at times, in the second half, before we brought him off he made two terrible decisions!
"But he really is a quality player. I hope the supporters enjoy him as the season go on."