The filling was mE not tricky and difficult, is criticized from time to time as here, and the film also drops in the bucket well after (I have the Litter Locker 2). However, it is compared to the original is not quite as smooth and thick, but rather designed like a garbage bag. Therefore, a point deduction. For me this is in view of the large price difference but completely okay. I have made one original package only 6 bags "elicited", and because the clumping litter quickly means a high volume of two Mietzen, handed me a cartridge only about 2 weeks. I would like to say that I already mostly separately take out the piles with Toipapier and dispose of the same in the toilet, so I can not judge how good this really includes thinner film stronger odors. In my usage anyway smells nothing unpleasant.