We really enjoyed our stay at Martin's apartment. It was very nice and had a decent size for two people. The building Iooks well maintained and is very safe. The location is awesome, right in Palermo Hollywood with lots of food/drink options within a few seconds to a few minutes walking distance. The nice cafe on the ground floor has great brunch.
The interior of the apartment is great too however you see that some parts have seen better days. The wooden floor on the balcony is partially broken, there is some kitchen equipment missing and the bar stools are pretty unstable (one is even broken, so it cannot be used). And the shower curtain could be replaced too (moldy on the bottom and it doesn't stop the water from spreading across the bathroom). The drawers next to the entrance have fallen out twice during our stay, so be sure to treat them gently.
We had to pick up the keys from Martin's mother (5min with the cap), which wouldn't have been a problem but Martin only told us to do so once we boarded our flight and didn't have any Internet connection. We then only found out when we stood lost in front of the apartment at midnight and found some free WiFi (BA has free WiFi everywhere luckily). Martin, please make sure to tell your next guests on time. ;-)
Nonetheless, we enjoyed our stay. The furniture is tasteful, bed is comfortable and the apartment was in general clean. It is nice to have a balcony and of course the location adds up to the good experience. And with a few hours of maintenance work I think all of the above mentioned issues could easily be resolved. (5 stars if all the issues had been fixed, 4 stars with the issues)