Great location in proximity to nearby metro stations (which are very easy to navigate). We spent 3 nights here and never felt the need to book a cab anywhere because everything is so easy to get to.
The space was cozy. If you are a little taller than 6 foot you might need to crouch a little because the ceilings are lower (due to the loft). The water pressure and heat were fantastic. We also didn't spend much time in the apartment aside from sleeping but the area was quiet as well, no loud noise from traffic.
Would recommend for visiting Vienna!