Yes, but I would place HUDs as somewhat more of a facile level of meaningful analysis - they're often used as a baseline for people who are multitabling and unable to watch a broad range of hands for patterns and habits. I've never relied on a HUD for the full decision-making in a single, particular hand. It's meta-information that is not actionable purely on its own (except maybe in the most ideal set of circumstances, like weeding out a good table vs. a bad one).