We've used ABBF for a crib one year and then a toddler bed the next year and their services was wonderful. My only caution is that they use a very heavily scented laundry detergent so if you grandchild is sensitive to scents, you need to ask that they provide bedding washed in unscented detergents.
To be honest, it's such a heavy scent that I'd be worried about a child sleeping on them and inhaling it all night long, regardless if they are sensitive or not.