From the way the road network is progressing, Longford is certainly becoming more of a hub.
There are some pretty rough areas around the town though, so it will depend on location, and of course the purchase price.
If it's a buy to let, as there is no University etc... in the town, you'd probably want to aim the rental at the young staff of the newly established (and in development) business and retail parks.
They would probably prefer town centre accommodation, rather than on the outskirts of the town.