General Tile Discussion

I have used the Home Depot “Simple Set” pre mixed thinset for my bathroom walls, I like it becuase it is easy to use and saves me a lot of time since I am doing this job without help. My next phase is to do the bathroom’s shower area which has a Redi customs pan, shower seat and eventually sliding glass shower door. I already have the recommended redi epoxy thinset for the tiles in the redi shower pan but want to use the premixed simple set product for the walls. But before I do I would like some guidance from the experts. Also this shower area will get at least double a regular shower’s use with lots of moisture/steam.