I'm still working of this sexy beast, 2.6 GHZ , 16GB
SOLDERED RAM and 516GB SSD that cost a huge amount back in June 2012, ordered the first day.
BUT:
1-it took 3 months from Apple to deliver my customized machine to Spain,
3 months of lost warranty time as it starts when you pay…
2-I had 1 battery replacement while in warranty in just 9 months, and it went malfunctioned also at 18 months old (no warranty left…).
2 batteries died in 24 motnhs
3-I got the awful "
ghosting problem" they refuse to change the screen, no matter how I cried, it was a real real problem.
4-some days before the warranty expired
the motherboard died, something related to GPU, it was covered with the Apple warranty so they exchanged it free of charge, and an Apple Genius super hero acceded to included the screen so I got a real super nice retina display at least!!
5-I was suffering the
WIFI/bluetooth low coverage problem for few years (BT ON= no WIFI signal), until they released a fix with some major OSX upgrade (cant remember) 2 years of real shame for low WIFI coverage and many discussions. Apple refused to agree this problem officially but Genius were very aware of this issue.
6-now a days, some macs are
suffering freeze for seconds to minutes due to something related to GPU in 10.14.6, of course mine, though isn't in the list, is suffering this problem, disabling hardware accelerated graphics helps for specific apps, but not for the system.
I can say of my 5 macs this has been the most problematic, but also the most beloved overall and long lasting.