what are you guys talking about kali 2.0 is awsome, it has alot of fixes although some are still there but i think its better then 1.0 as several drivers problems are fixed and also then GUI is very cool, quick, and to me is very friendly even sometimes i mix it with other OS i use and preffer kali new GUI, it isn't slow even an old machine of mine can run it very good, the only thing is the developers should fix some remaining bugs in the next release, and also as for as i think its interactions and tools shouldn't be that easy to use so that a novice or a skiddie can use it in the first run as we are talking about a powerful penetration testing linux distro.