My dog loves this stuff. I always give her some before I eat dinner so she focuses on her food rather than mine. It keeps well in the fridge for a short period of time if you have a small dog who can't eat a whole container at once.
One of my dogs is extremely picky about what food he will eat. When I mix Purina Prepared Meals in with his dry food, I never had a problem getting him to eat and that makes me feel like I am giving him exactly what he needs.