Warm athenian apartment is in a good location, quite, convenient to everything. Check in process is HORRIBLE. It's run by Upstreet management. There's no one to check you in or to greet you. God forbit if your flight arrives late at night. I tried checking in online before I arrived to Athens, but their website would not open up for me to check in. I have text/emailed them that my flight arrives at 10:00 pm and by the time I collect my luggage get a taxi, it would be around 11:00 pm or so to arrive at the property. The host/Upstream management replied back saying oh no worries you'll have self check in. When I arrived in Athens I was finally able to check in online except there was no code for the lock to get my keys to get inside the apartment. I tried numerous times to contact the host/Upstreet to send the code, but there was no reply. By now it's passed 2:00 am in the morning and we were stranded outside with our luggage and exhausted. Luckily there was a hotel Herodion just down the street and by no choice we had to pay for one night just so we can rest and shower. The point is, you can NOT let your guests to be stranded outside the apartment after a long flight, tiered and no reply from the host or the management no matter what the situation is. Never ever that I would stay in this apartment and I will never ever recommend anyone to reserve with this host/Upstreet Warm Athenian apartment specially if your flight arrives late at night.