We are a young couple (29) and we stayed 8 days.
The studio was very clean, the location is great, very easy to access with the instructions, the heater works really well, the bed and the pillows are good, the kitchen very well equipped, overall it is very cozy.
We had the opportunity to stay 7 nights. In the description says that it is noisy so we were warned. My girlfriend had no problems at all for sleep but I must say that I purchased a very nice wax earplugs in the pharmacy (for 8 CHF) and worked more than well. I used those earplugs two times. So it was noisy Thursday and Friday, but the rest of the nights was ok.
Regarding the toilet, it was very clean and equipped with soap, shampoo, conditioner and towels, it was a bit cold at the first time. I think the oven in the kitchen can not cook pizza, but that was not an issue for us. The TV comes with Netflix so we watched The Irishman. It was a long movie but from the bed was ok to watch it.
Overall the experience was good! Thanks this review helps new visitors! :D