Just purchased a Mac Pro desktop.. migrated everything from my iMac / 27" desktop OSX 10.6.8. Now running OSX 10.10.05.
First like many here I am annoyed that there is a functional change (iCal) I need to deal with besides getting this machine up and running. This means additional time spent patching something that should have been at worst an "opt in/out" situation. This is going to eat up part of or all of a day as I try and recover then implement an new system that incorporates the original function. I do not need separate functions. I need an integrated function as many users have already noted.
Second the use of colour coded file folders has been changed it now provides a small dot to the right of the folder and it's a sort function. So visual recognition and selection is now less easily accomplished and the colour codes do a sort ... If I needed a sort I can use the spotlight function. So what is this change achieving? More workarounds and time spent trying to get things back into a smooth work environment. Previous 'bold' visual clues have been dialed down for what? The superficial overview of a new visual interface on the screen? Someone's lost their direction with this idea which is miles off target of user efficiency. The original did the job, this does a second rate job.
Third Apple has now gone to using Microsoft terminology "ribbon" .... really? I use a pc at work and it's fine but don't start emulating another OS terminology it's confusing and useless.
Based on these 'upgrades' to the OSX environment I'm hesitant to move toward El Capitan. I don't need more "manufactured work" for Mac Users from Apple's software division. These changes for change sake is the kind of 'busy work' that's a sign of a non creative management group. Function and form shouldn't be toys for playing around unless it's an opt in/out situation. Stop it!