Does anyone use Exquisicat litters?

I'm wondering if anyone could tell me how well their corn and wheat litters work. Also, what size bags do you buy and how long does that last you? I have two cats who pee a lot. 

I have tried and used the Corn Exquisicat litter but that was awhile back. I thought it was very good and clumped extremely well. People do love the corn and wheat type litters. Just make sure when you are testing a new litter to add it in a new litter box and keep the other boxes the same until you are sure your cat (and you ) like the new litter.