well we haven't had any penetrations, so I guess the shield is working.
Love the product. Only suggestion for improvement would be to make the inside fabric loop slightly bigger/longer, as this would make it much easier to attach the fob.
Great product works as advertised.
Perfect fob guard
This is a great product, pity the car makers didn’t run with this as a standard issue, but I suppose it would cause them to admit there is problem with their design.