We spent one month in Europe in this journey, and this hotel is definitely the best one we've ever stayed.
First of all, the location is just wonderful! It's at the famous "Left bank" by the Seine. Only 5 mins walk to subway station Saint Michel, and about 10 mins walk to Notre Dame and the Louvre.
There's a Carrefour market near the hotel, hence it's convenient if you wanna prepare some food by yourself (I gotta say French microwave food is incredibly delicious!)
The staffs are very helpful and friendly, one of the staff who checked us in gave us clear introduction of nearby environments. The lobby is large and cozy, and there's a free coffee machine, we got one coffee almost every morning.
The room is clean and neat. One of the thing I loved is that they separate kitchen from bedroom, it's not always common among apart-hotels, at least based on our experience in Europe.
Overall I give this hotel the best rating. The quality is more than good for the price we paid. If I rerun Paris again, I will definitely stay here for sure!