I've got a T-Mobile Samsung Galaxy S4 and have received notification of the update. Before I do it though, I have an important question...after the update is installed, does anything revert to default settings? For example, are all apps still there, wallpapers, homescreens, backgrounds, contacts, custom ringtones, etc....??? I really don't want to have to reconstruct my phone post-update. I like it the way it is now and don't want to have to start from scratch.
Also, has there been any downside(s) to upgrading to 4.3 that anyone has noticed?
Thanks in advance for any assistance.