Flavor review: It's a card.
Mechanics review: I really like this guy. He combos with a lot of other good cards: Data Raven, Prisec, K. P. Lynn, Dedicated Response Team, Snare!, The Cleaners, Zealous Judge... The list goes on, but those are the viable ones that come to mind.
With BOOM! now being the only major killshot available to corps, he's not necessary as a "closer" for getting them in range. Rather, he's an annoying tax with the potential to become a win condition if you reach a critical mass of those cards. Score a Cleaners, and Prisec now does 4 meat which can be flexibly placed and stacked in any server. Snare alone will deal 5 damage! If the runner goes to trash him, a Data Raven in front and/or KP alongside will still ping them, which helps with his mediocre trash cost. All of these tag methods are hard for the runner to dodge, even if they know what they are, and it doesn't even matter if they clear tags.
A more janky, but not unreasonable tactic is to get him and a Zealous Judge rezzed during your turn, then mill the shit out of them like when Private Security Force still saw play. Most of the time it's hard to keep a Judge alive, but it is one more implement of scumbaggery in the toolbox.
One other note of appreciation - he's a beast in CTM, but wisely takes up their entire influence to run three, so for once Weyland gets to keep their own stuff. He fits decently in Argus or BoN, but I think I like him best in Gagarin due to all the assets and upgrades he supports.
Verdict: One Mr. Stone who won't ruin your game!