Why are you not happy with your MBP? Because of this little dock indicator "issue"?
- Dock not always working as it should (double indicators, sometimes no shelf at all)
- system sound sometimes grayed out completely
- no "Open Folder" icon when I select a folder in Finder Column view
- impossible to change the desktop picture
- Reminders not starting up (keeps bouncing in the Dock)
to name a few issues I already had to face during my first moments in ML.
I ran the update install 3 times.
So yes, I constantly have the feeling there may be much more issues under the hood, and they will no doubt pop up at the beginning of a working day, sooner or later.