Yes, there are still hic ups with suspend/resume(2.4 kernel related apparently)
Suspend is slow, you need to press and hold for about 2 seconds the ON/OFF button, it's bearable. I never use suspend from the menu, I feel it's buggier, and always suspend while lid open. Then you need to wait at least 10 seconds before resuming again otherwise it pops up for a second and then goes away. In this situation, you need then 2 other tries before it stays on.
Resume is slow, you need to press and hold for about 2 seconds the ON/OFF button. Fingers crossed, it always works for me. May be because I first open the lid to be in the same state as I was when I suspended and then resume by pressing ON/OFF button while lid opened, I don't use a screensaver either and I eject my wifi card before suspending.
I never have issues when changing the time using the Date&Time setting app either, screen goes black after 2 seconds until I tap on it, that's it.
You can use the command line to change the date and time it's something like
date -s "28 NOV 2007 02:06:00"
If you do this, screen stays on and you don't need to tap on it, it needs 1 second to update the time in the panel.