Excellent value for money in a very central location - one of the best rates you can get in Montparnasse. Basic and small room. It is close to supermarket (monoprix 1 min away), the station, lots of nice restaurants and theatres in Montparnasse. So if you need a night or two close to the Montparnasse Station, it is sufficient and convenient.
Sleep quality was poor as sound proof was not great - I was woken up by next door neighbours very early in the morning one day and I heard my next door neighbours talking till 3am the other day when I had to sleep and wake up at 4am, didn't manage to sleep at all. And you hear people walking in the corridor/staircases. It happens in Parisian buildings - better to look elsewhere you are a light sleeper like me.
Narrow stairs, no lift :(More