I had the kebabs/souvlakis at Thanasis (in Monastiraki as well) and was byfar the best one I've tasted.
Wow! I'm from Athens, Greece and I'm impressed to see this post! Both Thanasis and Bairaktaris in Monastiraki have a great souvlaki. If you're still in Athens, try going to "Dafni" in Peristeri, it has perfect home-made-like traditional greek dishes and a nice environment.
I love the foods and they are sweet, I wish I could visit the place too for good reasons. Nice work you have posted a lot of good experiences on that trip and treat.
Lovely photos and the foods looks amazingly delicious. One day, I may go to this place.