We have been using the newborn nappies on our baby since she was less than a week old. Even for a first-time mum (and dad!) they are so easy to use and we quickly transitioned to full-time use. We have had no more leaks with these than we had with disposables. The only issues have come when using just the one insert, which makes for a softer and less bulky nappy that fits more easily under coveralls, but can become soaked if we are not extra vigilant with regular nappy changes. With two inserts the absorbency is very high. Really the only added labour compared to disposables is the washing, and now that we are in a rhythm with that it doesn’t bother us at all. Highly recommended!