The protection that this pad offers is out of the question. It's made to protect your kickdrum from constant wear and tear, and it does that.
My very big disappointment is the poor quality of the plastic covering it.
It is not airtight, meaning the pad itself is approximately 2mm thick, and there is a plastic part that covers it, which can be glued to the kickdrum head.
Unfortunately the plastic broke off after 2 weeks of use (1 gig and 3 2hour long practice sessions with the band), so I had to use tape to put it in place.