I chose this place because it was the cheapest one with believable reviews that had a kitchen and was in downtown Lausanne. I'd have gladly paid another 20 franc/night if it had air conditioning. Even Switzerland was feeling the heat wave.
The place was a decent value. It had a nice window, and a two burner stove, and a little refrigerator, and just enough pots and pans to cook dinner for one or two. Everything was pretty old, with some cracks in the tiles. Stuff still worked though. Had a nice blackout shade, which was helpful in the heat-wave. Window only got about 2 hours of sun a day, which was helpful too.
It is super convenient to the gare and metro. It wasn't as noisy as you might think. There was some construction about a half a block away, but it was far enough from the trains you couldn't hear them.