I think the primary reason most people don't use it as a primary at-home diaper is because of the cost. Second would be that an AIO would likely not last as long as a seperate diaper & cover. Part of the reason is that usually most people use covers multiple times before washing, but with an AIO the cover part gets washed with every use. It's also more likely to end up in hot water for the wash, while many (most???) wash their covers in cold or warm.

I think also it's that AIOs tend to *sometimes* be slightly more prone to leaks. Now, that's not to say that they leak a lot, especially the ME ones. But the fact that there's only one 'layer' to pass through means that poopy blowouts might happen more often and wicking (say due to clothing creeping into diaper) probably occurs a little more easily. Obviously this would vary from person to person a lot so if it works for you then that's what matters.

Perhaps also the fact that there's less variety in materials and colors also plays a role. The ME AIO is only available in white with cotton interior. Doubt that's a huge factor but important for some people...

But there have been threads of people who use only AIOs and love it. It's easier for some (especially like dads, grandparents and other caregivers) because it's a little more like a disposable and there's only one piece to 'mess with'. Totally individual choice when you get right down to it...

Karen.