Well, I haven't liked Unity from the start. The fact that I do not have a list of the programs that are installed (like the windows start menu or the Gnome menu) is very upsetting. The fact that I have to know what I'm looking for in the dash to be able to look for it just doesn't work. I don't remember all the programs that I've installed on the computer?! Let alone know which ones were pre-installed.
Every time I install a new Ubuntu I go for the classic Gnome shell (which seems to have to be renamed in newer versions, because "we linux users are not afraid of change").
I'm sorry, but I don't want my UI to change drastically. Then I have to learn something new and I find myself to old to do this for trivial tasks like the use of my computer.
No, I also don't like or want to use Windows 8's metro interface or Office 2010's ribbon.