I think that BL is one of those plants that are either highly advantageous or highly troublesome depending on ones goals and objectives. Around me, BL (Southern Illinois, zone 6b) grows like mad. I find it all over my property. For my purposes, BL is a terrible nuisance, mainly because of its wicked thorns. I have a small tractor and I have had to do several tire repairs due to BL thorns poking through my tires. To be clear, this was a diesel tractor with R4 industrial tires and not a riding mower, so in my case, I have no use for BL and wish it did not grow on my property.
On the other hand, I have a neighbor who loves BL for its strength as a building material and as a source of excellent firewood. To boot, as a building material, the wood just will not rot like most other woods. If you want to eventually harvest the BL wood, then this could be a great option. But if you are planning on working near it, beware the highly aggressive thorns.
If it were me just looking for a tree to reclaim an empty patch of ground, I would personally think seriously about finding a hickory species to plant. It grows fairly fast on questionable ground and produces an extremely strong, resilient wood that burns slow, hot and long. If I just wanted to get trees growing and let them grow indefinitely, I would not plant a mono culture and instead look at planting a variety of trees, each with its own purpose.
I apologize if I made this issue more rather than less confusing complicated, but best of luck on your project and please keep us updated.