There's a difference between rooting and unlocking your bootloader to install ROMs. Unfortunately, on the One, you currently can't root without unlocking the bootloader which is why I haven't done it. On my Galaxy S2, I had tons of ROMs installed, but it is never a smooth experience, and there is ALWAYS something wrong. Netflix doesn't work, or MMS doesn't work, or the headset volume is only goes to 2/3rds, or the Bluetooth doesn't connect properly, or all the camera pictures have a yellow tint, or maybe the stock camera doesn't work at all or only works for taking pictures but not video, or the GPS has to be locked in on a different ROM before flashing this ROM, or the phone only works on alternate Thursdays, or the phone runs flawlessly but gives you a mild electric shock every time you push the power button, or if you download an app from the Play store the money automatically goes to the California Reform party. I just want root so I can tether easily, and so Helium backup works easily without having to tether to the desktop. That's not worth my giving up OTA updates and signing into the amateur development world of ROMs.