Ditto from me about loving the 530 and the new code. I've only rebooted the machine twice since getting CC back in July. The first time was a "preventative reboot" the day after the download.....the second was about a week ago when it froze on a channel.
Things have gone so well with the new code that I've even gone back to not hesitating to use RW/FF/Pause when watching a live show while recording something in the background (something you wouldn't dare do with previous software versions!!).
All in all, I'm very happy with the progress that has been made with the unit and can't imagine going back to my pre-530 days.