iowabowtech
root@android:/ #
The Gnex is a great device to learn on because it's really hard to mess it up with it's unlockable bootloader which gives you constant access to fastboot. With fastboot, you can get out of just about any jam.
G3 is not as easy to fix if there's issues but most snags are fixable with some effort. Also, the root methods are many (excluding Sprint) and they're easy to apply. The most likely problem would be mistakes made after rooting...i.e. altering system files which if done improperly could cause a (fixable) lack of boot.
Advantages are greater customization of the UI with tweaks that can only be applied with root and the ability to freeze or remove unwanted bloatware. You can also install root only apps which depending on what they are, may enhance the experience with the phone in various ways.
There are more advantages if you have a custom recovery in addition to root but currently, the only G3 variant which has that is the Tmobile.
If you do decide to root, purchase Titanium Backup and when dealing with the bloatware, use it's "freeze" option which will keep the system files in tact while removing the unwanted apps from the app tray and preventing them from running. Even if not rooted, you can probably get rid of some of the included apps using the application manager in settings (without root) but not all.
