I love change when it makes sense and is better. Lion is a change for the worse because of less user control and less options.
Spaces and Expose worked great, and I could use them together or not. Now I can't. Thats an option taken away, and that is not better.
And I personally love the changes Lion brought about, especially in Spaces and Expose.
Spaces is now great with different backgrounds giving you a visual cue to what space you are on. I find that the trackpad gestures for moving to each spaces to be much better than the old cmd-number or cmd-arrow and use it often (4 finger swipes).
I finally got to use Expose. Before it was a big mess. Now that I first choose an application (either through cmd-tab, through the dock or through MC) and then finally Expose is useful showing me only windows from that application.
I used to be able to move windows from any monitor or desktop from within spaces, now I can't.
You can, there's a bug preventing moving them from a monitor to another, but not from a desktop to another. And frankly, you don't need to be "within" Spaces to move windows, just drag them to whatever monitor you want them on.
I never actually used the Spaces app before in Leopard and Snow Leopard. Talk about a useless thing.
I used to be able to run some old PPC apps. Now I can't. (Perhaps at some point it can be argued that its time is up and Apple should remove it, but when current versions of MS Office have some PPC components, and Intuit's Quicken, and countless other apps and plugins still rely on it, its too soon).
It is that time. It's been 5 years since the transition, I don't see why Apple needs to invest in PPC any further at this point. It's over. Current versions of the software you listed don't have PPC components at all, Quicken Essentials is 100% Intel, so is Office 2011 for Mac. You're talking about the previous versions of these packages.
It's not too soon. If Apple doesn't cut support, vendors get lazy. It's too bad that some vendors can't read the writing on the wall and leave their users stranded. That's not Apple's problem.
When every OS including Mac OS Snow Leopard has full screen apps that allowed you to have a full sreen app on each monitor, now you can't (at least if the developers used Lion's full screen api), thats another option taken away (and a rather stupid idea).
Yes you can, as long as the app vendor does full screen the old way (you still can, there's no obligation to use Lion's fullscreen mode). Ask your vendor to change their fullscreen support from Lion's native API to the old way of doing it. If these vendors aren't doing it, it's because they have reasons.
And frankly, that's a small issue. Before, we didn't even have full screen apps as Spaces, so if you don't like the feature, don't use it. There are plenty of things in Lion I don't like. I have turned them off and just don't use them.
These are not different ways of doing things that we just have to learn, these are things we use to do and now we can not. There are plenty more to list, but I already repeated what we have been saying in countless threads since Lion was released.
No, these are things that you used to be able to do one way and now you need to learn how to do in a new way.