“Works suprisingly well. If you do not have a kit for hammering in the header, I used a breadboard and a small flat piece of wood. Standing the header and my Raspberry Pi Zero 2 W over the breadboard with the wood on top of the header I was able to tap it into place without damaging the pins. Everything works as expected.”
Sorry to hear you had trouble here - if you send more info/photos of what went wrong to support@pimoroni.com we'll see if we can use it to improve our documentation?
“Great for when you don't want to solder. Can be a little hard to install with the jig, as it feels very unusual to hammer something so delicate, but it works well.”
“You really require the addition of the small rig to help install this (which doesn't come included). I tried to install it without and ended up destroying my pi zero. So please take care!”