Stylish and clean place, conveniently located.
The two bedrooms were great (although be warned that an adult will find the upper bunk a bit of a squeeze!, nice bathroom (with good shower), and really nice kitchen/living room.
Lockbox checkin/out so convenient. Handy left luggage place (recommended by Brooke - thanks!) a short walk away.
Lots of clear instructions (except for the heaters, which I never worked out how to use).
Location is very good - it's in the less stylish, but quieter Upper Marais. Handy supermarkets, restaurants, metro.
No hanging space in main bedroom, which might be inconvenient for a stay of more then a couple of days.
Some late night noise from apartment above, bit stopped promptly at 11pm.