We had a great time at Wajdi's place. He was super helpful with what we needed and getting back at us real quick. Very welcoming and easy-going. The place is cozy and exactly as described, quite near the tram, which goes straight to the city center.
Some people in other reviews complained about cleanliness, but it was perfect to me, and I'm super picky! It wasn't 100% spot on, but you gotta keep in mind there's other people living there and everything.
I would reccommend it and I would stay there again if I visit Vienna.