Martin, you seem to be a little hard-headed about this whole thing, when it seems people are only trying to help you. If you find all these 'automated mastering' things work for you, great, but comparing to Ozone isn't the way to impress anyone - Ozone gets panned by a lot of people because it (like the others) uses presets.
I'm no mixing/mastering whiz, that's for sure, but after many years here - listening to others' mixes, getting comments and suggestions on mine, I'm improving - that's what we are here for, to improve, not just to show off (well, some of us, anyway.)
It's a mystery to me why you would NOT want to give us 'before' and 'after' mixes to listen to - the only one I found in this thread was that excerpt of Stairway to Heaven, and the only thing I could hear in the 'mastered' version was that it was louder. The Down By The River excerpt? Not recorded too well, as far as I could tell, muddy low mids and no crispness on the guitar (of course that could be the guitar or the recording). Can't listen to the iTunes stuff - using new computer, d/l-ed all the itunes crap and it still doesn't do anything (that's why I hate iTunes and never use it).