Serano Bakery has become a bit of an iconic Greek sweet shop and bakery. I've actually never tried their breads and other more regular baked goods but their Greek sweets are GREAT! Funnily, my Turkish friends don't agree BUT they are biased to the slightly different style that Turkish use when they approach similar delicacies. :)
I've had such a wide range of sweets from this place and I've never been disappointed. From Baklava to Loukoumades and beyond, you cannot go wrong!
If you have a sweet tooth, Christmas has come early for you! ;)