Mission Control is Exposé.
Simple answer.
NO EXPOSE
ONLY MISSION CONTROL
I believe you'll enjoy Mission Control once you get to try it.
By far the biggest issue with Mission Control is that is doesn't work with Minimised windows.
My complaint about Mission Control is not not showing minimized windows (you could easily get back by clicking the icon in the dock anyway...), but it stacks windows of the same app, which interferes with picking the right window.
It's not about getting used to it, if you use it enough you probably will, but not having app Expose and seeing minimized windows dumb IMO. I thought the whole Expose in Snow Leopard was perfect, took what was available in Leopard and refined it. Now you have to do more just to get the old functionality back. Sure, it's "easy" but I think Apple only did what they did because they wanted to market the multi-touch trackpad because I don't see how Mission Control is as quick/efficient as the Expose in Snow Leopard. Maybe Apple got it right and many enjoy Mission Control but for me it's a thumbs down.
By far the biggest issue with Mission Control is that is doesn't work with Minimised windows.
The Snow Leopard one was good except it presented windows in a grid (which is oblivious of the size ratio among windows). App Exposé is still there in Lion, you just have to click and hold the app's icon in the Dock, then choose Show All Windows.
Yeah, but that's the whole fuss about Expose in Lion. You have to do more clicking/gestures just to get near the functionality of that of Snow Leopard. I get that with Mission Control, it's suppose to make everything cleaner so you're more "organized" but when they first intro'd the feature in the keynote, I knew it was going to be something that affected me and how I used it. Finally being able to test out Mission Control with the GM on a spare HDD, it's not something where I'll say "well I'll get used to it". You have to do more to do the same thing than what you did in Snow Leopard and that's my problem - it's a way for Apple to show everyone "hey look our multitouch trackpad, it's better than everything else, look at all the stuff we can do with it".
EDIT: As mentioned by the poster above, this demonstrates how chaotic Mission Control can be when you have a lot of windows of the same app. Imagine having to pick the right image in Photoshop...
I concur with you. I tried very hard to get used to Mission Control, but the way it stacks windows of the same app is just a pain in my neck... Exposé in Panther (Tiger and Leopard as well) was perfect (maybe except minimized windows, which some likes).
EDIT: As mentioned by the poster above, this demonstrates how chaotic Mission Control can be when you have a lot of windows of the same app. Imagine having to pick the right image in Photoshop...
Doesn't it make sense, if you have an application with that many windows open, to just go into Application Exposé anyway? On Snow Leopard, I sometimes have 40,50 windows open. I would expect Mission Control to be more helpful in picking out one of three Mail windows among 40 other application windows than Exposé has been so far. Of course, I, too, was admittedly a fan of Panther's Exposé...