I had both (and a FOCS). I ended up selling the Ares and giving away the Fatips.comparable with the Fatip OC razors than anything else.
Comparing the shave feel of the Ares against the Fatip oc, I can tell you the Fatip has more blade feel. It feels and is less refined. Both can yield similarly close results, but the Ares is way more comfortable.
I sold it because I feel any razor above 130 euro's needs to bring me something a more affordable one can't in terms of shaving performance.
To me the Gillette new flat Bottom shaves equally comfortable and efficient as the Ares (Infact I find them to feel nearly identical - weight difference aside.)
I have only found one razor worth it's 200 euro price tag, my Gibbs adjustable. Other razors that cost me more have all been sold.