My wife and I found La Petite Maison just as you are, by reading online reviews. We were traveling in Italy with our 5 month old son, we had a few days unplanned and we decided (on a whim) to go to Viareggio and stumbled upon this great place to stay.
We are now just getting home from a summer full of travel and one of the places we speak about often is La Petite Maison in Viareggio. I still dream about the pastries at breakfast, our room was lovely and it was so great getting to know Guiseppe and his family. It was so sweet how "Nonna" (Grandmother in Italian) would take Fred around to the other guests and talk with him and play with him while we ate. Fred loved breakfast time almost as much as me!
Thanks for the hospitality and for making us feel like part of the family.