If you are familiar with MIUI for Android devices then you already know it is the Rom that brings an IOSish look and feel to your device. The Rom also has tons of built in customization and theming options! It was widely popular a few years back when it first came out, and is still pretty popular these days. It has been ported over to the HTC One by developer "AdyScorpius". This is like the MIUI that you have come to know and love with MIUI battery bar, MIUI music, MIUI file browser, MIUI bootanimations, MIUI walls, MIUI clock, and all the other awesome features. There are some other additions such as Google Edition camera, Titanium backup, and more. The only real bug here is a bit of NFC instability. You can grab this rom from the source link below.