For a very low cost, this card turns any ice you want in a poor man's Data Raven. Install it somewhere you expect the runner to run often, and it becomes a nuisance as the runner has to pay every time to win the trace (as it isn't a breakable sub), or just accept the tag.
Really good in any tag-punishment deck, especially SYNC and Making News. Argus also likes this card, although they already spend a ton of influence on NBN cards so I don't know whether they can free up any more. High link runners and Jesminder laugh at this though. Not sure on the wording, but I assume Hunting Grounds also counters this. Either way, kind of extra but a solid card regardless.