My home butt operation was sporadic at best.
The original home button that was shipped had the contacts on the wrong side. Ifixit sent out a new one within a week, and that one works perfectly.
One tip is to work in a clean environment. Preferably with a hard floor. If you drop one of those microscopic screws (which I did several times), you'll want nothing obscuring your view as you crawl on the floor to search for it. It also helped to be able to hear what direction it bounced. Lol.
Phillips #00 Screwdriver
Flathead 3/32" or 2.5 mm Screwdriver
SIM Card Eject Tool
P2 Pentalobe Screwdriver iPhone