I stayed a couple of days at the Upstreet, in the really nice, alternative neighborhood Exarchia. The apartment was so beautifully renovated and super clean. It felt very cozy and it was very bright. The communication was absolutely perfect! Unfortunately the flat somehow hasn‘t got noise proof windows, which I can’t quite understand.. and there are plenty of motorcycles day and night with the sound of a fighter jet starting, that it was impossible to sleep without earplugs.. Even then you could feel the bass. I hope they consider structural improvements, as the place is really great! But the noise was hard to deal with. And I am sure some window insulation would do a great job.