The Popescus are a strange pair. They sit at a good value to main deck them, but their bullets and influence are low for a mid game play. They do remedy these shortcomings on their own with the trait, but with a skill rating of zero you have to be careful what hexes go on them. For their cost however they make a decent secondary starting dude.
Their shootout ability at present time is very niche and difficult to make good use out of. What few mystical good there are most require mad science or Valeria, and most of the relevant ones run the risk of taking spots for hexes.