We have 60 Macs (Mac Pros, MacBook Pros, and MacBook Airs) purchased from 2011-2015. We see all the problems mrmondo mentioned except the iTunes one (we don't use iTunes).
The true deal breakers for us, though, is the terrible Wi-Fi performance. The Macs get spurious Wi-Fi failures; all Windows, Android, and iOS devices work fine on all our wireless networks.
As a result, about 45 of our Macs now run Windows 7 or 8. That means the users get a worse UI and not nearly so much functionality built in -- with the tradeoff being that the machines run predictably and reliably.
It seems everybody now has their "back in my day..." OS X version when things were stable; for me 10.7 was the last good version. All our problems started with 10.8, and things have been going downhill since then.
The true deal breakers for us, though, is the terrible Wi-Fi performance. The Macs get spurious Wi-Fi failures; all Windows, Android, and iOS devices work fine on all our wireless networks.
As a result, about 45 of our Macs now run Windows 7 or 8. That means the users get a worse UI and not nearly so much functionality built in -- with the tradeoff being that the machines run predictably and reliably.
It seems everybody now has their "back in my day..." OS X version when things were stable; for me 10.7 was the last good version. All our problems started with 10.8, and things have been going downhill since then.