"I haven't made the switch to Lion because of the changes to Spaces and Expose. It looks like it will make my workflow much worse, so reading your post is helpful. I couldn't image anyone finding the new methods useful ... I have 6 'desktops' in Spaces ... Mapping F15 to open all spaces at once, so I can drag and drop between the spaces and see all projects at a glance is something I use ALL the time."

I'll essentially repeat what I said above:

I agree with you. I have a 3x3 grid of virtual desktops, and it lets me get work done efficiently. Lion would be a major downgrade in functionality for me, so I don't intend to upgrade. (If one of my Macs breaks, I'd buy a used Mac for the first time in my life.)

However, for folks who aren't already into virtual desktops, I can certainly imagine Mission Control being of value for them.

It all comes down to how you use your computer. If you're a heavy virtual desktops users, Lion is a downgrade. If not, not. As with pretty much all of the decisions Cupertino is making these days, "pro" users of any kind are being end of the lined as Apple courts newbies.