What makes them so good is that they are AWESOME hehe. They are flexible, soft and gorgeous! Plus I was coming up in rashes from the disposable ones, not sure if it was the glue or the plastic, but it happened from when Jazz was born so I switched to cloth. Shel was sceptical but mine aer topped with green microfleece so the blood doesn't look red, which stops her sqeamish stomach LOL.
I don't have one stain and they're 7 months old now. Mine are backed with PUL, so they are waterproof, and I personally prefer the ones with wings for that added peace of mind

I can't go back to disposable, compared to cloth they feel like you're wearing cardboard between your legs.