They will be. Guaranteed or your money back.But here is what I was expecting. I use to buy any ole cheap chicken from the grocery store. Then one day I tried the expensive free range organic chickens. In truth, I saw a very big difference. The cheap chicken was spongy and soggy did not have any flavor and you had to eat a lot to feel full. The organic was firm had a great chicken butter type flavor and it did not take as much to feel satisfied. SO- I thought that If I raised and killed my own birds that they would be as good or better than the farm raised organic chicken I have been buying.

Free ranging, access to grass, bugs, herbs, berries and all the other little edibles in the yard will cause flavor. A veritable explosion of flavor. Compare wild duck to farmed duck. Should be similar to your mass produced chicken versus the farm raised chicken.
If fed straight from a bag, flavor will be limited. Kitchen scraps are included in the flavor recommendations. Chickens do great in a composting run. Now is your chance to make chicken compost and get "free" compost for your garden too. Home grown produce is also a flavor enhancer. Share with the chickens. I explained to mine, they eat the bugs, I eat the produce. We had a disagreement and now they aren't allowed in the garden. Fences work. I still share the bugs and some produce.