Gave this a go and,
It's not just an automatic process, you can do all kinds of stuff manually too.
Not bad, I tried it on an unmastered wav I saved for testing, made it louder and the lows are more pronounced as before it was thinner and edgy.
Makes it a lot easier to hear on my cheap speakers, I think the multiband compressor is boosting the lower mids.
I must say it's pretty awesome!