I'm cheap. Anything on sale is the best for me! Usually I go to Sams Club and buy that generic stuff that's $7 for a 40 lbs bucket. The cats don't seem to mind as long as it's scoopable, I tried the crystals and Corkscrew showed my what he thought of them by pooping outside the litterbox. As for the smell, I don't really notice it because the litterbox is in my bathroom so unless we go at the same time smell really isn't an issue for me.