The DOWNTOWN VIENNA FLAT T12 was just wonderful! I stayed there a couple of days with my 1,5 year old son and my mum, who babysit while I was working at TU Wien, which is btw just a few minute walk from there. It is totally family friendly place, big space, equipped with everything you need to make your stay pleasent. We enjoyed cooking in the lovely kitchen, and playing with my son in the big living room. I fully recommend this place!