Overall, the apartment fit our basic needs. It was a good size for three adults and one 27 month old. There were plenty of towels, beds were comfortable and kitchen was adequately equipped. Be aware of construction taking place right next to the apartment (an entire building under construction) and 7-7:30am wake up calls from the noise.
Location wise it will take you a good 30 minutes to reach any popular destination in Vienna by public transportation - bus or metro are 5-10 minute walks. The neighbourhood is very quiet and there isn’t much going on but it seems very safe and you have some essentials.