The zippers and grab loops are well placed and seem to be well designed, but the capacity is quite limited. The biggest problem is with the metal rod that the bag hangs on. The rod fits into a hole in the mower body, and the assembly depends on a small tab at the end of the rod fitting into a slot in the hole to keep it from flopping around. Because the mower body is plastic and the metal tab is very small, the weight of the grass caused the metal tab to wear the plastic slot after just one use, resulting in the bag flopping around and sometimes falling off.