 The optional breakfast is over priced and without doubt the worst coffee I ve ever tasted in France I only did that once Plenty of nearby places for a continental breakfast a much better option 
 Polite staff comfortable room almost next door to the Palais des Congres where I needed to be If you re travelling Eurostar it s a direct 2 25 min bus ride Route 43 from the Gare du Nord to almost outside A lot cheaper and only 5 10 mins longer than a cab Direct coach service from CDG Airport stops right around the corner Porte Maillot Metro not too away 