Home button became sticky and very unresponsive had to push very hard to get it to work.
Took me 3/4 hr to disassemble and replace button and re assemble iPhone with the help of an assistant mapping out all the screws and parts being removed so all screws went back to their rightful place.
You must have all the parts and screws mapped out while using the tutorial guide because you will soon forget which screw goes where without it. Also wearing latex gloves help as it stops any hand oils going on the parts. A must have is all the tools ifixit recommends for the repair otherwise don't even attempt. Patients is the key.