90 minutes is way too long for toilets unless they're in a 'never cleaned' state. 10 minutes per toilet is more like it.
Kitchen, though, may want longer especially while the kitchen is incomplete, the dishwasher may not be able to do all items and the fridges need some management.
I notice there's a wheel missing from george's carpet nozzle. This will severely limit the ability to use it and is probably available as a spare.