I am shocked at how good this food is. I got samples from a cat show and noticed that not only did they go crazy for it, but they didn't want to eat their usual food anymore. The previous food was also super premium, but of much lower quality. I had reservations because Natural Trainer is quite expensive, but I decided to give it a try. The results after just a month of use are amazing!!! The volume of feces has decreased by at least 1/3 and the feces are dry and odorless!! (with the previous food, the cats would go to the litter box and you needed an anti-odor mask to clean it). This way, I clean daily but I change the litter twice as often as before! Their fur is shiny and barely sheds in comparison! The cats are full of energy and jump around all day! It is worth every penny and more! I have 3 cats and I buy the 12.5 kg package, which is even more cost-effective (depending on the current offer, between 5.5-6.5 euros per kilo). For the previous, much lower quality food, I was paying 4 euros per kilo. It's not even a discussion that it's worth it and more! I highly recommend it without reservation!!