Activated charcoal adsorbs odors onto its surface and is used for odor control in industry. Baking soda works fairly well to control many odors, but over time encourages ammonia formation from urine because it is also alkaline. This is no problem with reasonably frequent box cleaning. If you do, don't expect odors to be eliminated. It's a good choice for those who do want or need fragrance-free litter with extra odor control.
Tracking is average, or better, too.
Finally, getting your cats to accept a new litter may take patience. When switching brands, start out with a small amount of the new mixed with the old and gradually increase the percentage. Some cats are very fussy about litter brands, so you may have a harder or easier time changing than others. Thankfully, Hakeem and Mark are very sanguine about different brands as long as I keep the box pristine. Scoop is worth a try.