Gold Coast United coach Miron Bleiberg has heaped praise on the club's marquee signing, Jason Culina.

The former PSV Eindhoven midfielder has already made an impact with the new A-League club, attracting praise from his coach.

"It's hard to judge, but me as a coach, I can see the small differences with Jason around," Bleiberg said.

"The whole, not spirit, but the whole quality of the exercise is lifted.

"He is doing everything better than the others and everybody tries to emulate him, so it looks good and I'm very happy."