Rented both Alex and Ariane. The rooms are tastefully done and comfortable with the shared bath a nice experience as well. For us the bath was shared among family, but if you rent only one of these rooms, (Alex or Ariane) you may be sharing the bath with whomever is in the other room at the time.
The rooftop terrace is simply a delight on all levels! We were there for the fireworks in the middle of the St Lawrence Seaway and the terrace was the premier private front row seat in the city.