Well, so far I like the touch screen focusing and the option to use that for taking shots. Useful when on a tripod, save pressing the shutter release. The 18-55mm is nicely made and is pretty sharp, though slow to focus. Not surprised, it's well covered in the reviews so knew that would be a 'feature'.
There are a few other features that I consider to be gimmicks, e.g. Creative filters, but I guess it all comes in handy from time to time. Being able to use the little flash unit as a wireless trigger for my 430EX II is going to be handy too.
Looking forward to getting the EOS EF adaptor to try out some of my other lenses and also going to try some digiscoping with it.