I have been using pellets since I got my chicks (they are nearing 7 weeks old now). I covered them with paper towels for the 1st week or so. I LOVED them. When I ordered my chicks I was splitting the order with a friend. I had all 12 of them together for 2 days on pellets then she came over and we separated them but I had to watch hers for her since she was leaving town a few days. The box with the pine shavings soon smelled a LOT worse than the one with the pellets, all other things being equal except she took 5 chicks and I kept 7. So that alone convinced me. I did get a lot of dust as they got older but it was from feathers, not pellets. I was going to switch to shavings when I put them in the coop for cost effectiveness but the price difference wasn't that much and I really liked the pellets so I changed my mind and am using pellets in my coop. My chicks are doing great so far!