Nice base, but as is a little bland. Add other seasonings or maybe use spicy sausage. Second time used extra spicy Mrs. Dash when cooking sausage and it helped that some. But next time will add more seasoning still.
Also find that the milk should be halved. Tried it that way and it was much better.
Doubles fine in bigger crockpot. 6-8 hours was fine, more might have been too much.