Cost: HB is about a buck more per sheet.. not enough to be a deal-killer if Hardi-backer is better.
I have cut and hung a few sheets of cement board to finish off another bathroom, it is heavy, but do-able. Obviiosly HB is lighter, and would be easier to handle, but is it as durable in a heavy use shower?
Do I need a special blade for HB? I picked up a 5 dollar blade at Harbor Freight that rips right through cement board, but at another place I saw a blade especially for hardibacker and it was 50 bucks. Do I need that special blade for HB?
Floor will be slate, is HB good to back slate floor tiles in a heavy use area? Or am I better off using Cement board?