Very good location close to the walkable central tourist areas of Vienna. No need for a car - in fact, don't bring a vehicle at all to Vienna. There is no downtown parking available to non-residents except the garages at 35€ per day.
The apartment is cosy but not tiny and would be suitable for a couple but probably not a family. Maybe a couple and a toddler/infant. It's clean and bright and quiet at night. There's a great coffee house just across the street and groceries, etc very close as well.