My stay at Robert's apartment was amazing, it was the best airbnb apartment I have ever booked and have been to.
The apartment is completely new, extremely clean, cosy (much nicer than on the pictures), well located (close to supermarkets and restaurants, 15min walking to Nyon center), and equipped with everything one needs. It's totally quiet, no noise from neighbours upstairs or from the outside when windows are closed. The large balcony was for me a major highlight, with a couch and two small tables.
The communication with Robert was at all times very nice, friendly and easy, and he was very patient in promptly answering my numerous questions before, at and after arrival -- he is certainly the perfect host.
Overall, I can only highly recommend this apartment, and I cannot think of any negative aspect!!