The apartment is a rather small place in Paris, clean and tidy, easily accessible to the Metro and bus services. The bed is very comfotable and there are drapes on the windows in the bedroom which allows for late sleeping (very rare in Paris).
The downsides are: very creeky wooden floors, very short supply of hot water (enough for about the shower of one person, second one should choose a different time of the day), no dishwasher and very small kitchen, check-in is difficult if you arrive late at night (no simple coded box with the keys).
All in all, the price is reasonable for the return.