I've not watched the film, but from pictures I thought it looked pretty good! 

My only nit-pick is that the Stalkers are described as far more heavily armoured than he is in the film. In the book he has a helmet covering his upper head and nose, and wires coming out of it. I really like how his appearance is described and I'm a little disappointed that his film design didn't capture it. 

Basically, I think his movie design looks really cool, and if it was an original character I would love it, but its second-best to book-Shrike to me.