Why do people like the IPhone?

The IPhone is not fun or cool to use. It doesn't bring anything I've never seen. It's a pain in the *** to use. It's slow. It has a bad interface. The only good thing about it is the resolution, but even then the screen is damn tiny.
So why do people like it?

Everyone like a product for their own reason.

For me, iPhones are easy to use, but I could also care less about the interface and screen size. I like just about everything that apple does too.

I've also tried the Samsung Galaxies and Android but iPhone is just what works for me.

Many people like myself like the ease of use and how accessible it is to use. Not to mention if you have other apple products they all kinda seem to sync together