I thought Worlds best was the greatest, cats loved it.. scooped well, odour control is brilliant, lasted ages too, i used this for about 4 months but the cost was killing me.. its so expensive, so after doing some research online i.e reading reviews of other cat litter, i came across OKo plus.....now to me this blows world best out of the water......even better super odour control! also the subtle smell of pine is delightful, it scoops even better... but the best thing is its half the price! so its a total no brainer!!!! im an advocate for "cats best Oko plus"