Just be careful about switching litters at this stage in Creep's life. Cats do not like change.

It must be done very gradually. No more then a few pellets a day added to the box, it should ideally take about two weeks to make the change complete. And if she doens't like it, she'll let you know <weg>

I use plain clay litter and have no problem with odor in my tiny one bedroom apartment with three cats and four litter boxes. There is no smell of cat box in my apartment.

I scoop the boxes four times a day (first thing in the morning, before I leave the house, when I get home, and before I go to bed) and immediately after they are used, if I am home to do it (like on Sunday)

I dump the boxes every Sunday, and scrub them with bleach and laundry detergent (because it's safe to mix with bleach) and baking soda, and air dry them, and put in fresh litter.

There should be no odor problems if you keep the boxes clean.