We have stayed in this apartment with a group of 8 people. It was very clean and spacious. The 4 bed- and 4 bathrooms were reason we selected this apartment. The rooms were exactly as advertised on the pictures and all had individual air conditioning units. The living room was very big and came with a table big enough for all 8 of us. The city center was a 10-15 minute walk away, and very easy to find as it is just one long street. We checked in a little late, due to some delay from our flight, but we could arrange this with the owner which was very nice. He provided us with some nice tips and maps of the area. He also helped to arranged our transport from the airport to the apartment with a taxi bus.
Some reviews called the area a bit vague, which probably refers to the neighborhood east of the apartment (at night). For us we didn't experience this as a problem as you don't have to go through there when going to or from the city center. There are some nice restaurants and bars to check out there, but indeed some vague people hang around there as well.
Overall, we would definitely recommend this apartment!