You can make rlxos work and look in the way you want.
Installing new themes, icons and fonts are pretty easy in rlxos.
- Just go to Bazaar
- Look up for fonts, icons, theme in the search or categories
- Download and paste them in ~/Applications directory
- Open the gnome-tweak tool and select your installed item
Extension system of GNOME is too great to describe. You can make the system look like Macintosh, windows or any mixture of that.