My first impressions of Kylo are that it is fantastic. I really like the default homepage with all the media links in one place.
Since I have a wireless keyboard with a scroller wheel and trackball, the interface is VERY easy to work with. It's clean and effective, and I just set down the remote and pick up the keyboard whenever I load it up.
I had to configure it to behave like an iPad at Hulu.com
in order to get their videos working, but I'm not sure I'll need that very often since Hulu already has its own WMC plugin that works with remote and keyboard both.
Not bad at all though.