Side efficiency, what does it say? ... Correct absorption compared to disposables that is usually used (we take the Intermarché Aldi layers or strata according to the classification made by UFC Que Choisir is the price criteria, efficacy and toxicity) and top against our cloth diapers which quickly clog (lye deposit or liniment that reduces the effectiveness of inserts). A small leak detected after a night a bit too long but nothing too bad. The attachments are easy to put on and take without worry!
Comfort, what my daughter said ... "Ahaaaa Eeeh Bougillldaaa" Translation: no irritation, no apparent discomfort movements, no effect "fat ass" exaggerated what I would like not because I am a Princess and tightening elastic thighs a bit light. In short: I like! (Note though that a baby can say three borborygmes!)
In short, I rather like the layers even though they remain relatively expensive ...