Nice place for those travellers that have their own plans and like complete independence. Easy to reach from the center, even if it looks complicated: first metro, then bus. At the end I was walking till the center in 30 min. You have a forest nearby so if you are fan of nature you will appreciate fresh air and birds singing in the morning.
Inspite of the fact that on the profile you see female the actual hosts are family with two children living in the same appartment. They all seems to be nice people so you can have some conversations if you meet them as they all live quite a busy life.
Although I met Franciose just the night before the departure I've learned it is better you ask for some additional information about expected rules to avoid some unpleasant situations after.
I hope you will enjoy Lausanne with its museums and vast cultural life. Wish you a pleasant stay!