Add me to that list. I got a 15" 2.6/16GB/1TB and have not noticed any problems... hope it stays that way.
You have to question some of these complaints wrt to screen brightness - it's fair enough if you get a yellow screen or something with an obvious flaw, but some people are just not satisfied. I don't know if I have an LG or Samsung but I know that my screen is quite bright and crisp. I've set it to the max and that's an unrealistic setting - I have it 2 or 3 from the brightest works. What's the point wanting the max brightness to be so blind it's unusable.
Freezing/stickiness: not really experienced that. I have parallels desktop installed and in windows mode(not coherence) you notice your cursor might stick when it reaches the edge of the window. That's working as designed so the features of windows can be enabled. I'm wondering how much of the complaints are actually user errors.
Transferring files over Wifi was initially slow but that was my error, not a mac issue. It took about 2or 3 hours to xfer 27GBs. When I used Time Capsule, it's about 2 hours to transfer almost 70GBs. Cue the complaint.
I've not used a mac in the past 15 years and when I did it could not have been for more than 1 hr. So far, I've set up my network, installed/configured parallels, windows, etc, set up time capsule/time machine backups, etc. All in all, my experience has been positive and I'll just take my time learning to use the machine rather than looking for imaginary problems.
There are things I need to get used to or change how I do it - delete button, home, end, scroll up, etc. But that's just the nature of change.