If you're passing on a blank 3/2 like Project Yagi-Uda, I'd pass on this as well. Yes, it allows you to free up a deck slot that might have otherwise gone to Preemptive Action or Spin Doctor, but that isn't much value. I'd appraise Longevity Serum's ability at ~2 credits of value. In contrast, the other 1-copy-only agendas have unique effects which aren't easily replaced by a 0-cost card.
I would only choose this card in decks where trying to score 4/2s would be too hard (e.g. PE). If you can score 4/2s, it doesn't make sense to cut a 4/2 to include this card -- any combination of Nisei Mk 2, Cyberdex Sandbox, Corporate Sales Team, Viral Weaponization, and Offworld Office are much stronger.