We use the boosters for the night. They are very soft and fit perfectly on top of the regular pads.
The pads work perfectly. The advantage compared to the cotton pads is the fast drying after washing. It usually only takes couple of hours for the nappies to be dry and ready to use again.
I am a huge fan of the nappies. They work perfectly on our daughter. She is very comfy with them, we don't have any problems with rashes or anything like this.