No there isn't an elevator. Yes there is someone to help for luggage. Yes the room has a kettle too. But there is a kitchenette on the same floor the rooms are. 24 hours open with cookies, coffee and tea bags. Fresh milk and cold drinks.
I haven't stayed in the master room either but I would agree that there is very little street noise. The rooms are well insulated and the windows double pane. There are a couple of restaurants there and some foot traffic but we never had a problem.