We booked a Studio deluxe and stayed in Room 211. Everything was **** and span, room was not very big but there was a proper cupboard and adequate storage shelves in the bathroom as well. All required appliances- iron and ironing board, hair dryer, cooking stove, microwave, dishwasher, TV, heater- were there. The bathroom and the toilet were separate and for two people we found that convenient too. The kitchen was in the corridor between the bedroom and the toilet and had sufficient utensils and crockery etc for two. In case you are there for 6 days or more you are entitled to a free housekeeping, else you pay a minimal amount if you want housekeeping. The bed was comfortable and linen clean.
Only thing missing were few basic essentials in the kitchenette - salt, sugar, tea/coffee, spices, which would've definitely made the package an excellent deal. But no complaints.
Location of course is a relative thing. We wanted to be Montmartre and it therefore suited us. Moulin Rouge was a five minute walk away, the nearest Metro Blanche was 10 minutes, many eateries, bistros, fast food joints and stores close by.
In all, it was a great experience and would definitely recommend it for travellers looking for a clean, convenient and comfortable place without too many frills.