This website also offers basic information about St. Therese and her family, and the main sites of Lisieux, which will be very close to our Ermitage!
The hotel website does mention free wi-fi - my guess is that it is available in the lobby rather than in all guest rooms- but free is good!
Of course, all rooms will have their own bathroom (with hair dryer), but please just be prepared that hotel rooms in Paris are quite... cozy (small) by American standards.
And with all things travel-related, please know that circumstances could cause a change of location. (That's not planned or expected, but I just have to add that in!)