McCrae was always an able fill-in, if occasionally jarringly distinct from Robertson; Braun fits more into Robertson's style. The one storyline where I really didn't like the penciling was "The Self-Preservation Society," which was just a bit too rough around the edges and lacked the urgency and kinesis of Robertson's work; it made a brick wall being kicked down look...boring.

But yes, Robertson's simply integral to much of the character design, especially personal favorites like Groundhawk. I don't think this book would've had the same appeal without him.