Like everything in Switzerland, Lausanne is a very good destination. My sister and I came from Sofia. We used the apartment of Loyse as a base for traveling around. Don't miss to go to Montreaux. The metro station of m2 is in less than 5 minutes away. In two stations you get to the train station ( gare de Lausanne). You get to Montreaux in about 20 minutes. From there you may take the promenade to chateau Chillion (40-50 min), all the time enjoying one of the most spectacular views of the world, filling your sensions with the magnificent combination between pictures of the lake, the mountains and the flowers!
Loyse was a caring host. She had prepared for us two beds, one big, the other small, in two bedrooms. This way my sister and I, each of us, had her privacy.
I think communication between people is able to solve any issue. I am sorry I did not ask some questions in advance. For example, what kind of town is Lausanne? If I knew that it is one of the steepest European cities, I would take the metro toward the apartment...I recommend to everyone to ask questions in advance. And you will get the best advices and directions from Loyse!