We enjoyed our stay here. The location is great, with a fantastic Italian restaurant across the street. Check in and communication were smooth, and the digital locks made everything easier. The apartment was clean, comfortable and warm.
It does feel very investor-y though, as nobody actually lives here, and the guests introduce themselves to each other when checking in without a host present. It shows in small ways, from the creaky thrift store furniture, policing by video camera at the front door and noise sensor in the apartment, weathered couch, no coffee table, a broken fridge (a mini fridge was provided to replace it), no hangers in the closets, a broken balcony light, and a lack of some basic supplies, such as appropriate electrical adapters for certain provided appliances to work, which a proper home would always have lying around somewhere. It's evident that the apartment was renovated as an investor Airbnb with emphasis placed on the bathroom and kitchen, but minimal effort to decorate and attend to the rest of the flat, making the place feel cold and impersonal.
Although it didn't feel like a home, we still enjoyed our stay thanks to the location, and Gracia responded to all our questions and provided us with a couple missing supplies when we asked, so we still enjoyed our stay in Montreux.