Great place. Staff is great and helpful, always up for help. Rooms are clean, maybe just the lockers are too small but that is not really a con for a price I paid. Def a great place to stay in Paris. Metro is just 30m away and there is supermarket with great wines in there just 50m away!
The only thing it was missing was lockers in your bedrooms. Beside that, great location (metro station just in front of an entrance), fine breakfast and a bar, great place to hang out in the evenings :) Just do the lockers thing, pretty please.
Great hostel. Especially the location. I can not think of any cons. The toilets could be more tidy I guess but that is it.