Anti-fry protection prevents untested third - party USB - C chargers from harming your system, while Signature Edition means no pre-installed anti-virus software or other bloatware like toolbars or third - party services are present on your laptop. (pcmag.com)
With root ensured you will be able to remove other bloatware and default apps, you can install a custom recovery image, you can flash custom kernels, update with custom ROMs, overclock / undervolt CPU frequencies and so on. (android.gs)
If you are one of those that wish to get rid of all the TouchWiz features and other bloatware, then you are in the right place. (android.gs)