Super Buffet Grass Court

Not sure the tours. But they have bus see ices to Disneyland. There is vending machines at G/F where you can exchange foreign $ to Japanese yen

The hotel does not provide washing machine, but provides laundry service.

The Keio Plaza Hotel consists of a 47-storey main building and a 34-storey south building twin tower, with nearly 1,500 rooms.

Oh, too, you can contact the hotel directly.

There is.

Is possible.

You can change it.

It provides laundry service though

I think you ought to ride the bus to SHINJUKU.Bus stop is located at the main entrance of the arrival ports. May be the bus go to hotels near Shinjuku station.

Three floors under ground and 47th floors above ground.