Stayed in Grégory's place for a month and had no problems whatsoever. The place is small but I wouldn't have needed any more space and I'm sure it would accommodate more people comfortably as well. The kitchen is modern and has everything you need to cook a nice meal (no freezer or oven which wasn't a problem for me).
The location of the apartment is probably the best part. The canal area is lively with lots of nice restaurants and bars etc. With the République metro station just a two minute walk away you can also reach all of Paris very easily.