If the grout lines are level and the shelf follows the grout lines, how can the shelf evacuate water? I don't like it. The 50% looks fine.

The 50% looks fine to me too. I actually hate the look of a 33%, so I always hire tile people who can do a 12x24 properly in a 50%.

I agree the 50% looks fine.

The offset isn't a matter of whether or not you like the look of 33% or 50%, it's a matter of lippage. Most tiles that large are warped during manufacture and a smaller offset helps to mitigate that problem (and a stacked installation eliminates the problem altogether). Is there lippage in your installation? If not, then it's not an issue, other than that it's not what you specified.

The 50% tiling looks good! I had 50% on all my flooring tiles; no lippage. I prefer the 50% look too!

Thank you all. The lippage does not seem to be super noticeable. These are rectified porcelain tiles from Bedrosians. I just am not thrilled that they ignored recommendations of myself, their own national handbook, and the manufacturer. They also installed a smaller grout line than recommended ( 1/8 versus 3/16). Should I just be appreciative that they can do these things skillfully and move on? I mean, I don't hate it. Though now I keep looking at tile pictures and thinking, " That 33% overlap looks great!"

Will lippage issues change over time in a bathroom and shower?

Joseph, do you think the shelf would drain better if installed per Schluter directions? I have written to Schluter but have not heard back. I'll try calling them on Monday.

1) The 1/8" joint without lippage is a plus.

2) Lippage issues will not develop over time.

3) The shelf is perforated. It will drain fine. Joe probably could not see the perforations in the photo.

Yep...In total agreement with Creative Tile.