Yep. This is just about the clearest, most objective and most unbiased detailed analysis on OS X I have read so far.
The issue with OS X is that, oh well, it has many issues :-D The fact remains though that it is an Operating System that offers some very important qualities:
1) The provision of a high-quality development environment
2) An excellent working environment. Centralized, coherent and interoperable, something which no other Operating System has managed so far
3) Eventhough subjective, a fine-looking window manager and desktop environment, which above all is easy to use!
4) Advanced stability through the use of technologies rarely found in other Operating Systems, such as the excellent blending of the Mach mikrokernel and the FreeBSD subsystem, the use of Quicktime and more
For more info, you are encouraged to read that article. It is a must-have for anyone, whether a Macintosh owner or any other computer user. Simply excellent