At first glance the (somewhat) blanket boost to all ICE in that server is a good thing right? It would mean each piece costs at least one more credit to break, making more taxing options, and might take some pieces out of fixed breaker ranger. Seems like this could be a very useful card. Unfortunately the reality Netrunner is that you cannot keep a runner out, only delay them from getting in. So this upgrade becomes very worthless, at most taxing the runner for a single run before they trash it.
That is where the big weakness lies - With only a two credit trash cost this card will go quickly after a successful run is made, and won’t offer any lasting benefit. It hasn’t seen any impactful play because deck space, even as far back as the core set, in corp decks is so tight.
With a deep enough server maybe this card could hold out the runner for a single extra turn. Maybe it could be used to draw the runner into a run where they only have barely enough credits to pass, and that +1 strength will force them to hit an ICEs subroutines. The drawback of course is that the runner might just jack out if they can’t get much further in. This in turn means that it could only really impact the ICE that the runner was encountering when the corp rezed Experimental Data. That logically follows it would only work if the runner had exactly enough credits to break through, not even one extra.
Corporate Troubleshooter does that far more effectively, and the tax that Experimental Data theoretically applies is only good for a run, maybe two due to its low trash cost. That would be why this card has see so little impact on the game as a whole, and why it most likely won’t in the future as well.
Experimental Data could be very useful if building a super server the runner would have to access multiple times to be able to truly do anything. Caprice Nisei plus Ash 2X3ZB9CY makes for a server that has to be run usually at least 3 times before access to whatever other card is in it - adding Experimental Data would give at least a credit tax for each piece of ICE. Experimental Data could also be used as a cheaper influence alternative to either Ash or Caprice, in making the runs harder to accomplish with even two runs. Still, that's one more card for the combo, and harder to set up. Might be worth the consideration however.
(Written during the meta of The Valley, part of the SanSan Cycle. For more reviews like it, visit wyldside.blogspot.com)