^ Not sure, I would use that more for maintenance type work. Or for a detail job that one got and they paid for an interior quick clean up/wipe down.
For the leather, what I found works great is using Meguiar's APC to clean up the leather, with either a towel or brush (gently)
After I use Meguiar's Leather Cleaner and Conditioner. To rejuvenate/re moisten the leather.
I imagine it like human skin, when dirty, one goes and jumps in the shower, uses soap and scrubs the dirt away. Then after they are out they dry themselves and puts on lotion to condition their skin.