I came here with my boyfriend for 2 nights. The actual place was everything we expected, pretty small, but fine for two people if you know this ahead of time. Everything was very clean when we got in.
The location was absolutely perfect, you could walk outside and you're a 15-20 minute walk from anything in central paris you could want to see. The view from the actual room was amazing, and looked even better through the large window which opened.
Only minor problems that honestly didn't affect our stay or bother us such as the light was burnt out in the bathroom. (You can just keep the door open and its tiny so it can be claustrophobic if you do close the door).
Guillaume was a very professional host, keeping in touch before and throughout the visit. I would gladly stay here again if I do return to paris. Everything about it is worth the price and just as expected.