Thanks, bill. It's good to get a reassuring word on these. Trouble-free on my machine so far too.
My approach on installing these, for what it's worth, is to use the notify me and I'll download when I choose approach. I then use the Express Install for critical updates when I know I'm not about to turn off my machine. I'll then often go back and see if there are any other less critical updates I also want to install.