I installed it just a few days after it was released and it only took me about 30 minutes to realized that I did not like it. Simple little settings that I really love about OS Snow Leopard were all of a sudden gone! Some of my favorite gestures used on my trackpad were no longer available in Lion.
For instance, I really liked being able to swipe four fingers left/right to be able to select running applications. In Lion they took that feature away and instead that moves between screens, which I never wanted to use. I never got used to the four finger swipe in Lion. I was still used to the Snow Leopard gesture and it would frustrate me every time I wanted to switch between applications.
Also, I really liked being able to swipe four fingers down for Exposé and see all the applications open all at once or being able to swipe four fingers up to see the desktop. I often will save a file onto my desktop rather than the Downloads folder for quick access.
With Lion I was not able to customize my own gestures - fail 1.
My MacBook Pro is almost 3 years old. I bought it in January of 2009. Macs are know for their longevity and quality. Even while running Snow Leopard, I never felt like my computer was running slowly. It seemed to always run just as fast as the day I bought it in the Apple store. However immediately after installing Lion I noticed a significant difference in the speed of my computer. At first I thought that it was no big deal. I would get used to it - NOT! After running Lion since the end of July I was so frustrated at how slow it was making my computer.
Apple disappointed me in a large part because of how slow Lion made my computer run! - fail 2.
Auto Save - I really liked the concept of Auto Save. I have had a couple instances where I myself have not saved a document and I ended up loosing it because I did not save before I quite the application. I thought this would be a great new feature.
However, I soon got annoyed of this feature because of some simple settings that I think should not be incorporated, unless the user specifies that they want it. With Auto Save, if you were to close an application such as Pages, TextEdit or any similar application you would not be prompted to save the document. The application would immediately close. The next time you opened up the application ALL documents in that application that were in use the last time you closed it would all open up automatically. I myself did not like this! There are many times where I open up TextEdit just to simply copy something real quickly from a web page, blog, etc. that I need to use for a little bit. I don't technically want to create a document of what I copied and with those instances I never want to save the doc. But with Auto Save, all documents would automatically save and re-open the next time I opened the application. The only way a document wouldn't auto save is if I hit ⌘+w or clicked the red circle in the upper-left hand corner of the open window. It would then ask me if I wanted to save the doc.
In my opinion, the Auto Save would have been a great feature if it worked like Microsoft Office on a PC. Did I really just give a compliment to something Microsoft?? haha. Yes, I did. The auto save feature is great when the application crashes or when you accidentally close the program and don't save. There should be a recovery or auto save dialog or window in the application to open the saved document.
In all, it was annoying to me that every time I opened up Pages or similar application, previous windows would also open, making me go back and manually close them and tell them NOT to save.
Those are just a few reasons why I was NOT a fan of OSX Lion. So, what did I do? I reverted back to Snow Leopard! Yes, it was kind of a pain to restore all my files and applications, but it has been so worth it to me! If you are one of those wanting to restore back to Snow Leopard, here is the website that I found the instructions on how to revert back to Snow Leopard: