I recently purchased an Omega Paw Roll'n clean litter box and got some Petex Fullers Earth clumping litter for it. It was a nightmare. I went through 20kg of litter in only 2 weeks and every time it was used, the litter would solidify so much it was like cement on the bottom of the tray. I found myself emptying out a significantly heavy load of litter every time I cleaned it. So I shopped around for an alternative and thought I would try this.
I have been using this for 3 days now and already it is so much better. It is so absorbent that the 'liquid' forms smaller clumps which remain separated and loose from the surrounding litter, making it not only so much easier to remove from the clean litter but also reducing the amount of litter that is dirty and so has to be removed. Already, I can see that although this bag only contains 15kg, it should last longer than the last litter I used.
Another major plus with this, is the odour control. I can notice a most definite lack of bad odour around the litter box and in the room it sits in. The only time I smell anything is when it needs cleaning and once that is done, the smell is gone too.
The only minor downside, is that there is a little more litter just outside the tray than before. Maybe because the granules are so small it looks like more or maybe it just sticks to the paws a little more but I can live with that since the whole experience of having a litter tray in the house until my kittens are old enough to go outside, is now more bearable.
UPDATE: Whereas the Pettex clumping litter 20Kg bag lasted only 2 weeks, I purchased this 15Kg bag on 23 June, it arrived next day and was used from 24th June. It was only 2 days ago that I needed another bag of litter. So this lasted me the best part of a month and that is with 2 6month old kittens using it.