Mavericks is awfully buggy on my new late 2013 15" retina MBP.
I've just had to restart due to the system locking up when I was working in Adobe Premiere using an After Effects comp. This would be forgiveable if it were an Adobe issue and I had to Force Quit but there seems to a LOT of bugs that I'm experiencing in Mavericks. For instance after restarting after the crash: where's my apple symbol?
Why when I took the screenshot did it not make a sound until the third or the fourth screenshot? It's these sort annoyances that make me realise that something is clearly unstable in this OS after using it for over a week. ML was absolutely fine and responded perfectly without any OS hangs.
I frequently get apps hanging, finder hanging, crashes, log in details or settings being forgotten and a really weird bug whereby trying to open a window to browse a file within another app tends to be slow in displaying the contents of the folders (this is a 500GB SSD and it struggles to find a handful of files or folders in documents).
Almost every other time I have to force restart after a hang (perhaps 8-9 times so far) my keychain credentials are forgotten and I need to sign in to icloud again. Contacts have now disappeared and in imessages either mobile numbers or email addresses remain from previous conversations.
Mavericks seems to have a short and long term memory issue. I am struggling to stay patient despite all the bugs and having to restart or constantly sign in to things is proving to be tiring and time consuming.
Apple PLEASE fix this soon, the random crashes meant that I lost a lot of time this weekend during an event I was covering,