The tagstorm is intensifying.
With the release of Data and Destiny we may now (11/2/2015) be at brief window in the meta wherein this card is worth a second look. New Angeles City Hall is fine, but it's brittle, and can be, if you're running against a super tagstormy deck, expensive. Plascrete Carapace and Paparazzi are solid options for scorch protection, but what use are they against the horrific existential threat that is The All-Seeing I? It's getting god-damn scary out there, and it may be time for something drastic.
And Qianju PT is drastic. Deck space is at a premium, and few runners are willing to include a card that perhaps hitherto, has been at the most a half-way decent way of saving a couple s and s in an Account Siphon heavy deck, and, at the least, some binder fodder with cool flavor. Moreover, a lost is a big price to pay as a preventative measure for a threat that may or may not be imminent. Adjusted Chronotype is an obvious counterpart to this card, but we quickly run into the issue of deck space. If you're going to run Qianju PT+Adjusted Chronotype in a quantity that ensures you will draw them when you need them, you'll be eating up at least three or four hyper-valuable deck slots (plus a not insubstantial amount of s and setup time). And with tags being a likelihood, but not a certainty, you may never even need to use them.
But you may not even end up needing to slot Adjusted Chronotype. Where I think Qianju PT really shines is in the "may". In the hands of even a semi-intuitive runner you may not need the support of Adjusted Chronotype to run this card effectively. If you can intuit that this Blue Sun just might not be vegan, or that this NEH might be something a little more than fast advance, you can, at whim, provide yourself with a safety that does not preclude you from running until you have enough s to beat them in a SEA Source contest or needing to stockpile enough /s to clear/avoid those tags.
I think that it may be worthwhile now, in this tag hell, to slap a couple Qianju PTs into your deck and just weather the inefficiency.