As a firewood the older the tree, the better the burning properties, especially in trees over 30 years old which is termed "old man pine".
Pine burns well when well-seasoned but has a tendency to crackle and pop because it is resinous and a softwood. Good for kindling since it lights easily but too much can leave a strong pine smell which is nice outdoors but can be overwhelming indoors or with food. Pine can also leave oily soot in your chimney.