No cat urine smell in my apartment, no litter dust everywhere, no yucky "crunchies" on my floor or even worse, in my bed!
I used half of the old litter and half of PrettyLitter the first month, and the change over was smooth. No hesitancy with just all PrettyLitter.
She still tries to bury all excrement, but that is normal cat behavior. I just need to even out the litter daily.
Her box is in my bathroom as she is a rescued feral and the bathroom was her "safe" room when she first came to me. There is no fan or window in my bathroom, but moisture has not been a problem.
And since it takes less litter in her box, it is easier for me to keep clean as it's not as heavy to move.
I haven't seen any colors yet, and hope I never do as that means health problems!
When my debit card was stolen and I had to wait a month for a new one, PrettyLitter was great and told me to just call with new info to restart service!
Bottom Line: Yes, I would recommend this to a friend