I like the OS econobum and I used them with my1st son. I decided to by the NB size for our 2nd son, ,as he was born premature and weighed 5lbs and bc I wanted to CD early with this one. Its s prefect fit for thinner prefolds. I like that the trim gets soft after washing. I currently use these with flats, bummis preemie prefold or the gerber all cotton prefold. I have tried to use the cloth-ez small prefold, but it's too bulky for this Nb fit cover. The only thing I would change on this is the hook n loop closure and the elastic trim on the front.the hook n loop is really sharp and harsh on the top edge, it wouldn't be a bother I think, if the elastic trim on the front/top wasnt there. It seems to fold down and then the top edge of the hook and loop is right next to baby's skin. It really irritated the skin on my 4 week old. I think snaps would have been better or a softer hook and loop.