FlyerTalk Evangelist & Ambassador: China
Join Date: Aug 2005
Location: DEN
Programs: DL DM/MM, UA 1K, AA Exp, HH Dia, WOH Glob, IHG Plat, Marriott Gold, NA EE, Hertz PC
Posts: 17,489
Regarding if there are extra room charges, price it out on the hotel's website, and if it's the same then you're set to go. If not, call the hotel to confirm.
As for VIP benefits for 3 people, ask nicely at the desk and don't be mad if they say no.