I have been a Mac user for the last four years. I used to really like it, everything was stable and polished and just worked really well.
But in the last few months, things started falling apart. My computer would freeze every few days, syncing would destroy parts of my data, the iPhone would crash every now and then, there would be weird random glitches...
I'm certainly not ready to abandon ship yet, but I can see it coming. The Mac is not what it used to be any more.