This time I decided to unlock the boot loader and root it right away. I don't need my device to be rooted now, but I might in the future. When you root you need to unlock the boot loader which will wipe the device.
I used this guide to unlock and root:
The phone is ultra fast. My old phone (Nexus S) was just a single-core and this one got a quad-core processor.
The screen is 4.7" which feels a bit big when you have the phone in your pocket, but it is really good when you use the different apps.
The edges of the screen are slightly rounded and that gives a nice smooth feeling.