Artur was very responsive and his place was centrally located and clean. The lock box idea was great so I can come in and leave my stuff before the room was ready and also leave the apartment easily.
DISCLAIMER: One thing not listed is the height of the ceilings. I'm 2 meters (6'6") tall and I couldn't stand up straight anywhere in the apartment. If you're above 6'4" or 195cm you will have a hard time. I only stayed one night so it wasn't a problem but it would have been uncomfortable if I had stayed a few days.