This is a powerful effect to apply turn after turn (as we know from the 419/Corp Grant days). Importantly, it layers on top of whatever else you were doing when you visited HQ (maybe a Diversion of Funds and also you're Steve and you're a Pennys Haver?). The only thing holding it back will be the increasing costs of running HQ as the Corp ices up in response to your fixation on that server. Still, this is a card to keep an eye on.
(Midnight Sun Booster Pack era)