1) No more so than any other bat
2) No, it depends on your style of play and as Crictech has said on here most of us do actually hit the ball higher up the blade than we think anyway. If it feels nice then it will tend to go well.
3) Kookaburra bats, for me, are hit and miss. Some are stunning and some are less so. It's definitely not a brand I would ever buy unseen, but that's just me. They seem to break a lot but, again, that's just my experience of them...(well teammates of mine..) I'm sure you'll get a Kook fan along in a sec to tell you they are the best bats in the world...
It's all personal preference...