Tev's place is amazing and so is his hospitality. I stayed for one month at his place during my research exchange period. The location is perfect to travel around Vienna and also close to two different train stations. Tev knows about city quite well and he was kind to show me around one evening.
The apartment and the room however lacks some amenities e.g. sofa or extra chairs, cupboard, fridge, TV, functioning cooking pans that you will miss during a long term stay but as his place was recently bought, Tev plans to add them I believe.