I played it but don't have SP so can only give the perspective as someone who Jack used his gadget against. Seems like a solid gadget. But it's hard counter is common sense. Get pinged. Move. Easy. Count roughly 10 seconds then try to make it so you are mid transit when pinged. If they're trying to get a wall bang, they won't. They still know where you are but, as with Caveira, sometimes knowing (as the one pinged) that you're about to be pushed is all the info you need.