The description of the apartment is accurate. The train stop is very close, there is a grocery store right around the corner as well as any other shop you might want to visit, and the view of the Eiffel Tower is lovely. However, the walls are paper thin, the bed is uncomfortable, the bedding is scratchy, and the check-in policy regarding late transportation is ridiculous. If your train or flight is late the host will insist on charging you 15 euro for every hour you are late, even if you make attempts to contact her and the person who is supposed to check you in ahead of time. So if your plane is delayed 10 hours, for example, you will owe 150 euro. The risk isn’t worth it in my opinion, since you have no control over late planes and trains, and there are plenty of other nice places to stay that don’t have this policy.