Hmm, is there anything special beside the theming and different default software compared to Mint 18 Cinnamon?
I'm answering my own question. After some playing around inside vbox, I came to the following conclusion: Nope, there isn't.
Ran it live on one of my laptops experienced lockups playing with the theming engine. Installed on a test desktop same result.... lockups on changing through the various themes and did not respond to icon desktop resizing. Seems a little buggy to me.
looks ok. but mostly more Colorful and themey. i rather stick with MINT. OR ARCH. but we all have our flavors.