Efi is a really nice host. She warmly welcomed us at her flat, which is nice and in a cool area of Prague. It's close enough to the Old Town to be there within 15min, but enough outside to be in an area, where real Czech people live and not just tourists. There some really cool bars and cafés close by. I liked it very much, so I totally can recommend Efi and her place :-) Thanks again for everything.