I find it a little buggy. Some apps now crash several times when opening them. On the iphone taking a pic and then deleting still keeps the icon of the last photo taken even if it has been erased, which is actually quite amusing! i love the left and right swipes to move from app to app, though I still find that to my surprise there are more apps open than I am aware of: we need a way to shut down apps in bulk rather than doing it individually from the task bar.
Swiping with four fingers up to bring up the task bar requires some practice, and I find that instinctively I tend to use three fingers, which inevitably takes me to some other option within a given app if there are active icons on the bottom. Three fingers should be the way I think: four fingers in landscape mode to bring up task bar is a careful operation...
I absolutely love the four finger pinch-in to shut a window down: fantastic!
I have enabled Icloud but for very limited things. I was confused as to why music wasn't in the icloud options. I finally discovered you access music from the cloud through the Store. Even then you have to manually download the music you want, which is going to be a real pain. I only had music on my iphone and was "looking forward" to automagically having it all available on the Ipad. I don't see myself downloading it all and take up all the space.
Still discovering things here and there. Hope the bugs get sorted out soon, and that it gets a little more responsive, since ocasionally it does freeze on some apps here and there.
All the best.