The Hoka Speedgoat is a great road-to-trail crossover shoe. However, it should not be used exclusively for road running purposes. The Speedgoat is going to be great if you have road connections and you have to run quite a bit of road mileage to get to the trails.
Also, it has got really good potential where you’re going to come down into a valley or run stretches on road and tarmac because it does have a good commuter feel to it.
Again, the Hoka Speedgoat is a good trail shoe to go off-roading and the lugs won't get in the way on roads.