I’ve been using Mac OS X consistently since around November of 2005. Overall, the experience has been good. I’ll list some of the good and the bad.
The pros: – Everything is in your user directory, there is no registry – The look and feel are excellent – Laptop integration is excellent – Everything generally works well – Networking / wifi works without issue – Firewire support is excellent, it is how I do backups – Peer to Peer wifi works great – Unix!
The cons: – The lack of good keyboard shortcuts limits productivity – The lack of a second mouse button on the system is disappointing (even NeXT had two mouse buttons)