From what I saw at the keynote I am a little excited. That may change once I get my hands on it or I may like it more, time will tell.
A lot of the features, to me, are very welcome.
The new look, it's fine, that I'm not so picky about. As long as my home OS works as it should, does what I want/need it to do then I will be more than happy.
I probably wouldn't have even noticed the semi transparent look as much if they hadn't have pointed it out so many times. I'm used to OS's with this, it doesn't bother me one way or the other.