The hardest part I think for the framing and installation is allowing room for the tub filler and hand held spray hose. Making sure you have room for the hose to retract and not interfere with the plumbing lines is key.
This is a nice clean look and really adds to the space but the fact that the tile is set to the tub deck is a little dodgy. We lightly scratched the tub deck to give it some texture and they coated it with Ardex 8+9. The bite was great and my tile install went in solid.
Time will tell with this install. We had not done this before and did I think everything we could to make it "Tankish".