The apartment was fantastic and the hosts responsive and helpful. The place is modern and well equipped, with a very spacious living room/kitchen, a bedroom and a bathroom. Check-in was super easy and flexible, with clear instructions. We happened to be in Berlin in a period that was colder than we expected but had no issues with the heating. The only downside I could mention regarding the apartment is the low placement of the fixing point for the handheld shower head in the bathroom, which made showering a bit uncomfortable (to be fair with the hosts, this is shown in the pictures).
Can's place is located in a nice residential neighborhood and feels very safe. We were about two blocks away from a stop of the M45 bus, which we used to go to central Berlin by connecting to trains at the Zoologischer Garten. Trips to central Berlin would take around 40 minutes. There are other, possibly faster, modes of transportation one could use close to Can's place, but we didn't explore them.