For our upcoming trip we were planning on taking the Paris Shuttle from CDG to the apt. we've rented on Rue de Seze but from the reviews I've read it seems we should avoid them. We could take the Roissy bus but I'm not sure how long a walk it would be from where they'd drop us off at Opera Metro station. I've read it's only a "short walk" but don't know what that means. We don't have any mobility issues and have luggage with wheels. Do you think the bus is a viable alternative? Thanks for any input!