Il Mio Problema
My friend needed easier access to his iPhone and didn't want to always need to go looking for a Pentalobe screwdriver, (which he doesn't own) each time.
La Mia Riparazione
The change of screws is very easy, just unscrew the Pentalobe ones, and screw in the new Phillips ones.
Il Mio Consiglio
If you have the 54 bit driver kit, it can make it a little easier, but the provided screwdrivers work well and are actually good for small field jobs or if you can't be bothered carrying a full bit set around for a quick fix and are definitely worth keeping.