Guillaume was not there during my stay, but Loeka was and everything was pretty good since my check-in, which was on time and it was easy to find the address.
The communication with Guillaume was fast, the apartment's location is central, if you have a bike then everything is just a few minutes away, otherwise, you have plenty of public transport nearby or can simply walk.
Regarding the accommodation, it was clean and comfy, pretty much as you can see in the pictures. I felt I had a lot of privacy and this was good since I came to attend an internship in Copenhagen.
Overall I strongly recommend staying at Guillaume's place.