According to iBeryl, his old TV setup had followed him through several moves, always landing in the same familiar configuration. But after moving into a larger home, that once-comfortable setup started to feel out of place — the TV looked too small in the bigger room, the angled legs were a pain...
I used RedGard liquid over Wedi board. You need two coats of RedGard (with proper drying time), but Wedi panels make shaping niches a breeze. No mold issues so far after 2 years.