“Not sure if this is only an issue with the Pi Zero 2, but the force required to get the pins even partly into the board seemed far too high. Even after increasing force applied, could not get the pins in to the board in an acceptable manner at all, with either the board bowing or the headers entering at an angle. Don't bother with this product - just buy some standard headers and use a soldering iron.”
“if you at all struggle with soldering or you just have no interest in doing it then this will be your best friend! Two warnings... 1 is that you need to apply even force and more force than you may first think of. 2 do not hammer down one side first! this will just bend and break the pins.... no one wants that! Love this product and saves me a job I don't like in the first place”