updated today http://www.mandarinoriental.com/paris/rooms_and_suites/

taking reservations from sept 1

rooms 37m2 > 52m2 (only €400 variance)
suites 57m2 > 340m2 (all 1.5+ bath)

says from €765 / €1750 (4th nt free on suites) but im seeing €100 higher (this year FS is from €750/€775...)
seeing rates for all but 3 suites, highest online is €8K

specifically mentions soundproofing as well as valet closets
mandarin rooms have balconies and mandarin terrace rooms have "large terraces" but neither have views