Hand-filled polyester insulation is considered better than goose down in puffer jackets for several reasons:

1. Hypoallergenic: Hand-filled polyester insulation is hypoallergenic, making it suitable for people with allergies to down feathers or feathers in general.

2. Cruelty-free: Goose down insulation often comes from live-plucked birds, a process that can be cruel and inhumane. Hand-filled polyester insulation is cruelty-free and made from synthetic materials.

3. Moisture resistance: Unlike down feathers, hand-filled polyester insulation retains its insulating properties when wet, making it a better choice for outdoor activities or in wet climates.

4. Easier care: Hand-filled polyester insulation is easier to care for and maintain than down feathers, as it is machine washable and can be dried in a dryer.

5. Cost-effective: Hand-filled polyester insulation is typically less expensive than goose down, making it a more cost-effective option for puffer jackets.

In conclusion, hand-filled polyester insulation is a better option than goose down in puffer jackets due to its hypoallergenic, cruelty-free, moisture-resistant, easy-care, and cost-effective properties.