Yacine was very accommodating to our needs - mainly to do with check-in, as we were arriving in Paris really early in the morning. Yacine agreed to meet at 10am, but was there at least half an hour early at 9.30am when we arrived, and showed us in immediately :) we were also lucky that his previous guests had left early, so we were able to take a quick shower before heading out for the day.
The corridor that runs between the bedroom and living room (which also leads to the toilet, the shower and the kitchen) is rather narrow, but just right for one person to walk through at one time. Kitchen is actually also rather narrow, so not ideal for too many chefs.
To my slight surprise, there wasn't hand soap in the shower (where the sink's located) but Yacine was perfectly okay to run out and buy some as he got other supplies :)
The things in the kitchen can be rather dusty, so fair warning to those who are more sensitive to dust. The heater in the living room is slightly weak, so if you're sleeping on the sofa bed, make sure to pull it close enough to the bed.
Not super sure about public transport as my friend and I mostly walked everywhere, but pretty sure there's a bus that stops rather close by.
All said, a perfectly adequate stay for visiting Paris for about a week or so! Price is reasonable too :)