[Unknown Zone]

When a person does a hardreset....it just reload what ever rom is loaded on the phone at that time.

There are alot of "pros"... here is one when you remove the junkware it frees up internal memory and freeing up as much internal is very important for the phone to operate smoothly.

One "cons" is when you cook a rom with a certain program..and you want to upgrade the program, most of the time you will get an error, cause it cannot uninstall due to being cook into the rom, so if you are thinking of upgrading dont have the program cooked into the rom.

There will be more to come from members chiming in.