I am a normal computer user. I use windows and Mac. I bought a 27 inch top of the line imac, mid 2011. It came loaded with Snow leopard out of the box. And this thing flew. Everything worked. I have since updated to Lion. Everything failed. Kernel panics, video problems, no sound, windows wouldn't close, lockups etc.
So, Full wipe, fresh install of Lion.
Still no go.
10.7.1. Didn't fix the 3 major problems that I was having however the kernel panics ceased.
10.7.2 fixed most of the other problems and bought with it FINALLY close to the speed I remember that wonderful day I took it out of the box and booted it up for the first time. But still not that fast, I have an SSD in it.
I still get a problem, when I remove my headphones from the jack, they revert to digital. They are analog headphones, the speakers in the mac don't come on. I have to perform PRAM reset to fix this. Every 3rd 4th startup, the operating system doesn't load. It just comes to the login grey screen, and when you log in, the video drivers are not injected properly. So everything is choppy and I have to reboot to fix.
I don't know how many crash reports, errors I have sent to Apple. I lost count. Tell me they listen/look at this, because 10.7.3 better hold some chop, as I am just being honest saying it like it is. I bought this imac, it worked flawlessly with snow leopard, and it's never worked properly since I put Lion on it. NEVER.
Get your s&^t together Apple. this cost me a lot of money, and I'm not happy about it.