My sister and I stayed at Kal's flat for about 6 nights. The flat was close to everything - metro station, historic center, tramway, etc - and tiny but clean and with everything we needed ! We didn't meet Kal but he was always available to answer our (numerous) questions about Athens, super nice host ! We really enjoyed our stay and Athens just amazed us (we left with a broken heart.. sigh)
Thanks for everything Kal !