Hi Eileen,
Yes so I do a thick layer of newspaper, with Aubiose on top all throughout the hutch and I put extra where they go to wee. I wouldn't recommend using Aubiose without newspaper as it makes cleaning out much more time consuming. The great thing about Aubiose if you have a garden, is that it composts very easily and we use it as a mulch around plants, so it doesn't go in the bin.
I spot clean lightly with a dustpan and brush to remove the bulk of poops in the main living area once a day, my piggies don't go to the loo in their bedroom compartment so I never have to spot clean that. I have two girls. I do a full clean twice a week, though to be honest if you spot clean whilst also removing the toilet bits and then replenish - you could probably do once a week. I like to do it twice a week as my girls are outside and I can't bear the thought of wet bedding.
It is very absorbent and I do a layer deep enough so that it covers where the clean out tray of the hutch meets the hutch side, so it prevents draughts too. I pay £10.99 for a bale and it lasts me over month with my two. It's also really low on dust and my girls feet are perfect, no redness or anything, highly recommend it.