Mika's place is beautifully designed, very comfortable, very Parisien and located very centrally in a quiet & safe area. Mika is really helpful, provides some good coffee & choc upon arrival, which is a nice touch after a long flight.
Things that did not bother me but to keep in mind are: flat is on the ground floor meaning you can't just open a window and leave the room (but there's a film on the windows so you can leave the curtains open). The front door of the building is very loud and you can hear people coming in and out all the time so if you're a light sleeper this is something to keep in mind.
Overall I very very highly recommend Mika's place, very convinient location and safe area, heating works really well, did not get cold despite it being January and overall an extremely pleasant experience :)
Thanks mika!