We've used these on both of our kids & they're brilliant - as well as the PopnGro SuperSoftee & Pocket. We bought them all from hunnybums.com It is basically like a disposable nappy so it is simple. Having said that, you can add boosters to increase absorbency. We bought a few for when our parent have the kids. My Mum was really sceptical - having used terry squares on us - but after the first day with these she completely understands why we don't use disposables. Shame these didn't exist back then. They're are microfibre nappy so they come out of the machine almost dry so we never tumble dry them & we can use them after a couple of hours of airing.