Resurfaced lifters

I've read people suggesting to have lifters resurfaced, but has anyone here used them?
I hear people say it's fine, but I had a guy recently tell me the only time he had a lifter fail, it was a resurfaced set.
I'm already done a couple few times and had no problems... Ever stopped to think that the situation could have been a coincidence?
I don't believe they change anything about the lifter except for giving it a fresh new machine surface,.