need to try it to see
Have been on Unity since 11.04 and still don't like it. Inertia and lack of real need (for the present) of lost features has kept Ubuntu as the boot OS on my only personal computer, a laptop.
What's wrong with Unity? To paraphrase Donald Rumsfeld, "known unknowns (KU) and unknown unknowns (UU) can't be found". Maybe the HUD changes that.
KUs - when there's an app I use infrequently I often don't remember the name, e.g. Startup Disk Creator. Maybe HUD changes things but with Dash I've looked through the list of all installed apps, 151 of them, more than once to find it. Didn't have any luck coming up with search terms that showed it so had to take that route. With a menu, an option in 11.04 and always there before, could simply inspect the menus and always able to find that forgotten app I needed. And a bonus was getting a refresher on what's there and the context for use based on the menu it appeared on.
UUs - the apps that are installed but I don't use them until I start exploring the installed software suite and launching to see what something does and whether it's useful to me. My 2?? they're not as readily identified and found again in Dash as they are on the menu. So I've lost the opportunity to expand my use of the available applications.
I'll second Regulus about the configurability of the launch bar. Favorite example... I use KeePassX. Would love to have a button on launcher to launch my password file but can't figure that out. Having KeePassX remember the last used file is a limited workaround because I sometimes create temporary databases or for other reasons don't feel like opening my password db. So having the app on the launcher IS NOT the solution. Having the file is.
Others, how about a configurable default folder to open when the launcher "Home Folder" is clicked? Or a right click on Home Folder at least lists the built in and custom shortcuts. Or being able to launch another instance of a folder from the launcher.
Or... there's many more capabilities lost on the Unity interface. In a work environment, Windows XP to Windows 7, use those capabilities all the time. In Ubuntu used same capabilities all the time 11.04 (non Unity) and earlier editions. On Unity the features are lost.
So lack of driving need keeps me from changing. Even after a year on Unity I still feel the loss of functionality. If my use cases change and Unity doesn't enable the lost capabilities I will be migrating when the time comes.