We arrived about 6:00PM and Lukas welcomed and told us everything not only about a home but also the restaurant nearby.
Also Lukas was such a nice pianist, he played the piano when we staying it's pretty gorgeous and sensitive sound and we felt "the capital of music, Viena"
The apartment is a little way away from the centre of Wien, however the train and tram systems are so frequent and fast it barely impacted our stay( and this apartment is very closed by station so it's very comfortable to go to centre)!

Lukas was a great host and offers a very reasonable price. If you're looking to stay in reached centre of Wien, have a great guide but compromise the 5* hotel room then this is the place. I would 100% recommend him, a great guy, I will him all the best in his future.
Thanks for your everything Lukas!