If you want to take your HTC One (M8) into the modern era with a relatively newer version of Android, the storm will help you get there. The ROM is based on Android 8.1 so a lot of new features will be available on your slightly aging device. From what I’ve researched, this is a highly stable ROM that brings in a lot of new features to the hardware.
The latest update to Resurrection Remix for the Moto X Play brings the ROM up to date with the official Resurrection Remix sources. XDA Recognized Developer mrunalkaran has build an Android 7.1.2 Nougat build based on LineageOS to the device. There aren’t any known bugs so far, but if you find one then be sure to report it in the thread.