Glad you like the apartment. As you notice it's a bit noise, but unfortunately if you want to stay in the center of Cannes during a big congress like the Lions you cannot escape the noise, but we have the Aircon and double-glazed windows, it can help. About the price : we only rent it for the whole congress period, and as you stay for just a few nights , the price per night seems high, but in fact it's not that high. Lions is one of the 3 biggest conference in Cannes, we cannot afford to rent an apartment for only 3 nights in the middle on the festival for the normal rate.
Hope you had a great time in Cannes and to see you next year maybe.