Hela's apartment was great for a short break in Paris. Is very conveniently located about 2 min walk from the metro station and there is also a bus station around the corner, making it very easy to reach Paris's attractions. There are 3 supermarkets less than 5 minutes away and 2 good bakeries around the corner. We got a delicious birthday cake for my little son at one of them. The living room and main bedroom are of a very good size, but the second bedroom is quite small, basically just a double bed and barely 15 cm to the wall. Not a problem for the kids, but maybe less convenient for older people. The toilet and shower are on the small side, buy hey ... you are in central Paris! Only downside was the very limited kitchenware, making it difficult to cook beyond the basics. A few more cooking implements would be great.
Helas was very responsive, she answered all my messages within a day and accommodated our arrival before 14:00. The instructions she provided for arrival where spot on, we had no trouble getting there.
In summary, I would recommend this place for a family or 2 couples wanting to see Paris and staying in what felt to me like a very Parisian neighborhood.