Went to Pantheon on the weekend with my BF for our two years.
Everything was great. The feast began with three different types of dips with bread, for free. We then ordered a Saganaki (flaming cheese) app, as well as a Hot Combo plate for 2 which included grilled calamari, grilled octopus, sausage, 2 spanakopites, 2 dolmades. The food was really good, as Pantheon is known for their seafood and such. Service was also very excellent. They even brought us free Ravani at the end of our date, which is a greek dessert. We also got two bottles of Retsina, which you can never go wrong with.
One downside is that the meal was quite expensive. Not too expensive, but it still was pricey. They also charged us when I asked for some pita for our saganaki. Strange, because you'd assume you would get some free pita with a $14 cheese.
Anywho, we left with our belly's full so we were happy.