I've learned from experience that good batting makes a big difference whether it is poly, cotton or other type, it has to be a good quality. There is a reason some batting cost much more the others even at discount prices. There is a type that most new LAs seem to use because it it cheap. It's rough, stiff, and you can see through it. If the price for quilting includes batting I always ask for a sample of the batting being used. My favorite is wool or silk. For quilts that will be used and washed a lot I use Warm and Natural.