Fantastic location; right at the heart of The Latin Quarter. You could feel the vibe as soon as you step out the door or even look out the window.
The space is quite tight for 3 people. It really is max a 2-person apartment. It can squeeze in 3 at a push but the nice artwork decorating the place makes it a tad impractical to move about for fear of breaking any of the artwork.
One must remember, it does not have a lift so... where possible, avoid bringing a huge luggage as it is so hard carrying it all the way up to the 3rd floor via the very narrow, spiral wooden staircase which fits only one person at a time.
You need a certain level of fitness going up & down these steps. One can’t be drunk climbing up or downstairs :-)
Otherwise, adequate accommodations for a short stay in Paris.