Some people love it, some people hate it. This kid is part of the later team. If you are looking for an in depth review analyzing all the features of the operating system, this sums it up for some.I haven't upgraded my phone yet, but I have an older iPhone so I am really kind of concerned about the upgrade's effects.  I might bight the bullet one day, but unless it does it by itself in the middle of the night, it most likely won't get done.