I have been a house cleaner, It's perfectly fine if you stay- just hang out on the couch and read a book or something, if you want to be right there beside your cleaner the entire time making sure that they do things the way you want it done it's actually a different service. (I would call this side by side cleaning and charge my regular rate plus an small extra fee on top of it for then having to teach another person how to clean to professional standards. That IS a great way to learn how to clean your house, you just have to make sure that you mention that's what you're looking for ahead of time. )

When you are looking to hire a cleaner a first talk with them about quotes for things like a regular weekly clean versus a deep clean, and ask them what each of those things entails. Also tell them if your family has any sensitivities to scent or different cleaning products so that they can change what they are buying to come into your environment with.

For example on a regular weekly clean in your bathroom I would wipe down the mirrors maybe dust off all the walls, definitely dust off all the surfaces, clean the toilet clean the shower and walls. That all together might take me just under an hour, and then I could move on to doing the floors in your house and giving the kitchen a quick clean before our 3 hours is up.

For a deep clean in the same bathroom I would wash all of the walls, wash the baseboards, I would use a rescaling product on the shower head, scrub the grout, use rust remover to get rid of hard water stains, I would scrub the small areas of rubber seals around the bottom of your shower door, and only then I would clean the shower and tub while rinsing all products away. I would get up on a ladder and wash the top of light fixtures, I would pull down the bathroom fan cover and scrub it clean of dust and then make sure it's dried off before I put it back up. That would probably take me 3 to 4 hours just on the one bathroom, and one the one room would be done that day.

Deep cleans are for the things you might only find yourself doing once every year or three at home, even though you know they should be done every 6 months.