it too hard to say,GREAT is a matter of opinoin,people have different standards,a great dog to someone could be an average dog to someone else. i think for a dog to be great it has to have that something special,a real extra drive to get the job done,a dog that can sort out digs that have gone wrong on other terriers,a dog that if he has already been dug but he is required will dig again EVERY time he is asked,a dog that you can put into the biggest and hardest of places and will stay untill the job is done,even against well schooled quarry,these dogs are GREAT dogs,they are hard to get, and n