Is lilac a good wood for burning in a fireplace?

I've burnt lilac. It's a very hard and very dense wood that burns well and very slowly but needs to be well seasoned. As it usually comes from a small tree, the diameter should be relatively small so it shouldn't take an age to dry out. The stuff I burnt had been drying for several years, so how long it takes before you can burn it I couldn't actually say but I'd guess 6 - 9 months.