Installed on my mac (Lion) a couple of different ways - tried through cross over, ended up with difficulties installing internet explorer and the installation crashed. Came to the website and used the crosstie to install. Went smoothly, although IE again did not install. This does not seem to be necessary - there is an internal browser, and the program seems to co-opt your browser when needed.
The program runs quite well, better in my experience than Q2009 did. There are some minor graphics bugs, with some ampersands appearing in some of the action buttons, and some instances of slow window resizing. However, seems that there are no major functional limitations or crashes. Was able to create budgets, reports, etc. without incident. I would give this a gold overall.
Will post if any quirks discovered along the way..
H