Xavier's hotel is located in the heart of St. Germain with a lively community. The local (on the same block) market, traiteur, ice cream, and restaurants are perfect for grabbing a quick bit or hanging out with the Parisians till 2 in the morning (BUT when you shut the windows you do not here anything so that is good;).
I was a solo traveler and felt very safe in the bustling community local to La Louisiana Hotel. Bus and metro access are walkable and offered direction to where ever you wanted to go within Paris and there were three train stations scattered through Paris that could take you anywhere you wanted to go outside of Paris. I can not say enough about how happy I was staying there because the location is in walking distance to the Seine all that the area has to offer.
The breakfast (if included in your reservations) was simple but acquitted to include orange juice, milk, coffee/tea, pastries, fruit, yogurt and packets of butter/honey/jellies...I was very satisfied with the choices.
My cleanliness rating was low because the building is old (there is no secret about this) but to me it did not matter because I was there to be in the heart of Paris and take day trips through France...not spend time in the room. The actual bedroom was perfectly satisfactory but the bathroom (mine was very spacious) had mold in the corners of the tub and (maybe because of the excessive heat wave) had ants as well. HOWEVER, someone comes in every day to take away your trash, vacuum and make the bed so that was nice and your room may not have these issues.
Concierge was excellent, very helpful, informative and accommodating ;) I will stay in this hotel again and highly recommend it to those of you who are not so concerned with having a pristine environment.
I hope you found this review helpful!