It should be very similar to Warm and Natural, as it is a cotton batting needlepunched through a scrim. There seem to be very few reviews of the Pellon online. The one comment I have seen about it is that it is a relatively linty batting. This wouldn't stop me from using it.
Pellon assigns different numbers to its battings, and I think there is more than one type of cotton batting that they sell. That's why the following one (#2107) may not be the same type as the one being sold at JoAnn's. If you have a chance to stop at JoAnn's, maybe you can find out the # on the bolt that is being sold. Anyway, here is a link to the one sold on Overstock, which has several reviews attached to it:
http://www.overstock.com/Crafts-Sewi...7/product.html