I've now been to Olympos a handful of times and I have to say, I'm never disappointed.
While it is in a very unassuming spot on Steubenville Pike, it delivers a punch when it comes to their gyros. I originally stuck with the standard gyro, but the #4 (Hera) is just the perfect combination. It has BBQ Tzatziki sauce and it is just delicious, it also comes with fries and an onion ring ON THE GYRO. I couldn't get enough.
I suggest this place to anyone that wants a solid gyro in the Robinson area.