The apartment is absolutely perfect for 2 people and can also accommodate 3 quite comfortably. 4 people can also stay there if 2 of them are small enough to comfortably share the double bed. The apartment is extremely clean and well maintained. Its location is excellent. There's a subway line right in front of the building which takes you to the center of Vienna in about 5-6 minutes. You can also get to most relevant places in the city in under 30 minutes. The apartment comes equipped with both 5GHz and 2.4GHz WiFi so you won't have any trouble staying online. The host is very nice and accommodating, quick to respond and is willing to help you with whatever you need. Overall, my stay was amazing, 5 star rating hands down!