We stayed at Pilar's place while attending a work conference. The apartment is very clean, well-equipped and modern. Pilar was very quick to respond to my messages and I am very thankful to Alfonso who waited a bit longer to let me in while I was held up and late to arrive. The location is very convenient, right next to the U1 line so a couple minutes to the centre of town as well as to the Austria conference centre. There isn't much to do in the area itself but this was not my aim anyway. Overall, a great place to stay for convenience.