I will definitely be using this agenda in any NBN deck I build with tagging in mind. 3/1 agendas are normally in an awkward position since each faction has a 1 pointer that only costs 2, and 3 advancements could instead get you a 2 pointer (In NBN's case Project Beale, or 2 points and an easier future agenda with AstroScript Pilot Program).
However, the great thing about Quantum Predictive Model is when you are using a tag storm deck it becomes something the Corp usually wants but can't have: a safe agenda. There are still a lot of stubborn runners out there that float tags instead of getting rid of them. This card punishes them for that. If the runner is double tagged, Quantum Predictive Model becomes safer than NAPD Contract, requiring 2 clicks and 4 credits to be allowed to steal it again, then they still have to make the run. Beyond 2 tags though, it just keeps getting better. If the Runner is too far into the eye of the tag storm, they may never have any hope of stealing Quantum Predictive Model. Best of all, even if they have given up on taking Quantum Predictive Model, they can still accidentally give it to you for free by accessing it from R&D. Who cares about it increasing your agenda density if the Runner can't steal it anyway?
Of course, it isn't perfect. If the Runner has a better answer for tags, or if your tagging ability isn't as good as you thought when building the deck, you're going to regret picking this over some 3/2 agendas. But ultimately, I think it's a welcome addition to NBNs toolbelt.