First, you must know a few things about our group in order to understand our perspective. We were a group of 4 university students looking to explore Paris on a budget. So essentially, the choice for us was between an airb&b for about £25 per person per night or a hostel. We considered it far and away better than a hostel for a budget traveler, but for those accustomed to the higher end of hotels, this may not be what you are looking for.
Now some quick pro/cons
PRO:
--Has 3 distinct sleeping areas
--Can cook (we made breakfast)
--Host is relaxed about check in times (we arrived at 9 pm)
--Safe: The neighborhood while not fancy seemed well lit and good at night
--good location - near metro, near fresh market, near grocery store, easy places to get a quick bite but also sit down meals
--Host is responsive
--not in a main tourist destination
--has a washing machine
--Clean
Cons
--Shower has VERY limited hot water (enough for 1, maybe 2 showers). It is also very small - the two men (average size) had a hard time moving around in it
--The third bedroom is actually in the living room/eating area, the bed is apparently not comfortable
--Kitchen is minimally equipped - it is fine for making breakfast but nothing more
--About 30 min outside of main areas
Final notes: While typical size of most Parisian flats, it is small for 5 adults but comfortable for 4 people (especially 2 couples or a family with children) Additionally, the flat is nicely decorated/set up (my friend loved the exposed wood and brick work). The split bathroom allowed for an easier negotiation of the people to bathroom ratio in the morning. Very good value for money and overall, what we were looking for.