This was a wonderful place to stay. I was not familiar with the Canal Saint-Martin area before booking but I'm so glad that I chose to stay there. The apartment is in a great location - 2 min. from the Number 2 line metro, around the corner from grocery stores (including organic groceries), liquor stores, bakeries, and convenience stores. There are many cute restaurants, cafes, and bars within walking distance. I stayed for about 3 months so really appreciated the convenience of being close to everything. I was living mostly by myself and felt very safe walking in the neighbourhood, even late at night.
The apartment itself is cute. Very clean and well kept. To me, it was bigger than it looked in the photos. It is a perfect size for a single person but, when my partner came to visit, it was still fine for two people. There is good storage for clothes/luggage so you don't trip over your suitcase while living there. Typical of most French apartments, you will hear your neighbours through the walls/ceiling. However, everyone is respectful at night and I had no trouble sleeping. The studio is also located on a relatively quiet street and faces the courtyard so there is no traffic or street noise.
The sofa bed is comfortable. There are blackout curtains on the large window to keep out the light when you want a lie in. The shower is small but again, this is normal for all the places I stayed in while in France. It does the job. The kitchen has everything you need - 2 hobs, microwave, toaster, pots/pans, coffee machine, kettle, etc. There is no oven or dishwasher. There is a washing machine which was so great when you're staying for an extended period of time. Cleaning supplies was also available (broom, mop, various detergents) which was also great for a long stay.
Lastly, Yasmina was a wonderful host. Check-in/Check-out was a breeze. She was readily available if any issues arose and quick to respond. I would highly recommend staying at this studio.