I'm seriously unimpressed with 10.9 in general. I bought a new MBP a few weeks back, and the hardware is awesome... the retina screen, 16GB RAM and 1TB SSD mak

I'm seriously unimpressed with 10.9 in general. I bought a new MBP a few weeks back, and the hardware is awesome... the retina screen, 16GB RAM and 1TB SSD make it a joy to use. But... * I enabled Bluetooth, plugged in my Magic Mouse, and the next time it woke from sleep wireless connectivity had disappeared and has only come back sporadically since * the machine occasionally 'loses' USB drives, complaining that I didn't eject them properly when they're still connected * plugging in my Nexus phone via USB, or an HDMI cable, sometimes causes the keyboard to freeze, needing a hard reboot. Rebooting twice within an hour isn't welcome when you're giving a lecture and have already met the student who loudly proclaims that Apple hardware is overpriced crap. I do wonder whether Apple actually test new releases of their OS, or just leave it to us to do it for them. And don't get me started about the usefulness of the "Genuis" Bar at my local Apple store... I am wondering whether a downgrade to Mountain Lion may fix a few problems.