What is interesting about Ops Room is that it is one of the rarified "spend a counter" cards where each counter does more than a single point of whatever effect it allows. Up there with Command Center. The Douglas, Med Team and The Night Nurse.
Honestly, banking three resources to prevent three damage is pretty okay. Not sure I would include in many decks. But we also get to remove a threat each time we use it while possibly triggering the many '...after taking no damage' cards in Protection? No brainer.
This is the backup that makes sure your Protection deck ticks that one extra damage prevention over the top to justify those upgrades. And swiped some threat at the same time. And Protection is very weak on thwart, so this card exceeds it's cost valuation.