For the price advertised, this is an awful rip-off. My room smelled like beer had been spilled and dried up, and the whole place was super loud (with the receptionist himself talking loudly until 1am, which I could hear from inside my room).
I booked two nights but left after the first. When I asked them about a refund for the second night, they said they'd get back to me but never did.
If you need a place in Lausanne, just spend 3-5 CHF more and get yourself a decent place where you can actually get a comfortable night's rest.