just because it's new doesn't mean it's more advanced or somehow better. The old implementation of Spaces was more versatile and feature rich than the current laughable virtual desktops. I do enjoy mission control, but it could use some more options and consistency, for example for some reason when I made new desktops in Lion it arranged them 1,3,4,2. Why it did that I cannot determine. The way to assign applications to desktops has been neutered, but you can now set different backgrounds for each space (although you can't name them!).
I do enjoy Lion, especially the animations --something I never thought I would care about, but there are many features that have been lost that I really miss. The removal of Spaces really made me hesitate on updating.
btw,
you can't get to your user library without the terminal or the Go to folder option. There's no reason to blindly and annoyingly defend Apple's decisions. It's much more enjoyable to have a civil and information backed discussion rather than, y'know, go on the way you have.
Open finder..press shift+cmd+g type /library
Done.
How hard is that??
I personally found Spaces to be completely useless and find myself using Mission Control on a daily basis. Your personal experience has been crippled...mine has been a LOT more open and useable!