After Effects has been a stable and fabuously fun, ultimatley indispensible and valuable application on all of my Macintoshes since After Effects was called CoSA.
If you're looking for complaints, try asking, "What will not work for me in After Effects?" But that will depend on your hardware and your ability to learn this unbelievably deep and complex application.
How does AE work for us? Can you make the question a little more vague to render us totally baffled?
Bogesian's response is about the best anyone can do.
If you can identify areas of concern, we'll try to answer them.
It works really well for me and it makes me lots of money.
The reason it works so well is that I have a decade of experience with it.
Quite well thanks. It's been my primary tool of trade and income for 15 years.
Why do you ask?