I work with several who are at a separate office from the one I work at. They're a royal pain in the ass because, for all their questionable engineering decisions (a system that crashes - stack-trace to the server console - because of a single bad field in the database), they are remarkably politically astute. Much of our leadership thinks that brogrammers are what top-notch software developers are like, which makes their brogrammer mentality all the more irritating.