The tile done in the second picture of my first post is actually 6 x 36 wood look porcelain tile ( a different company though). It is laid the same way as mine. It is was done by the main tiler and looks beautiful. It is 1/8 grout lines no lippage at all! I would post a picture of it but it is all covered up right now. I was harsh about the second guy helping him because he had already cut a lot of corners with other things. He wasted a lot of tile getting cuts wrong - which the other contractors themselves were complaining about and bringing some to my attention. Some really bad cuts I noticed he tried to pressure me in to accepting - when I almost caved another one came to me and confirmed it was not good. He basically tiled my kitchen and left the molding on the wall. On top of that all the cuts against the molding were jagged. Like one part would up against the molding and the farthest was .5 to an inch. When I asked what would happen with it he was just answered that it would all be filled in with grout. Dark grout that would make it stand out even more. EDIT :: Here is the link to her tile: https://www.lowes.com/pd/CERAMICAS-TESANY-Tahoe-Gray-Wood-Look-Porcelain-Floor-and-Wall-Tile-Common-6-in-x-36-in-Actual-5-82-in-x-35-29-in/1000379225 Maybe her tile - despite being larger, allows it. If that's the case, I can wrap this around my head and get over it. However, if hers is similar to mine and the good tiler is able to do it without lippage in that layout with smaller grout line - I would like to go for it. EDIT:: Is this another possible solution. When they relay it Would relaying it to overlap in thirds instead of 1/2 help. I am not to particular about that if it will help me get the smaller grout lines.

This should have all been handled in the prep. Was completely avoidable with the proper prep. But what we don't know (or understand) is why the shower walls were built out so far. One common approach would be to build jambs. Again, this is all part of the planning. Doubt the walls were that far out of plumb that you couldn't achieve a better result than you have. You should have been given your options before anything was done as what you have is not standard. There are so many ways to rectify this in planning. This stuff hurts my head.

I'll be a contrarian. I would never knowingly rent a room with a shared bathroom in the hall. That would be a complete pass - I don't even like having to use a hallway bathroom in a sleeping situation in which I would share with friends and family because if I need to use it in the night I would have to wake up more/get more decently dressed and I hate having to shlep stuff to take a shower or perform normal grooming stuff in a bathroom. I don't have the horror of viewing a toilet from a bedroom that some houzzers seem to have. It certainly wouldn't bother me on a temporary basis. I have a master bath in my home and I can't remember the last time I actually shut the door. I don't have issues with smells or humidity but perhaps that is because my Toto washlet has a built in deodorizer AND I have an excellent Panasonic fan which runs based on ambient humidity levels. I don't generally even have condensation on shower doors or mirrors after exiting let along huge amounts of humidity wafting through my bedroom. The question really is one of economics. There is a cost to installing the bathroom and OP would need to decide whether they would make up the expense by having increased rent and/or renting it out more frequently. Certainly any prospective renter would see a picture and determine whether they wanted the ensuite with a curtain in the room or use of a bathroom in the hall. Also resale value is a red herring. At such point that OP wanted to sell it would be relatively inexpensive to convert the bathroom into a closet if having the ensuite in that room was a negative.

Your tile has seams. No reason to think that this is any different. Just change your perspective. It's not like you're trying to make it look like the entire shower was carved from a single block of stone, right? It's really pretty and nobody is going to ding you for having a seam.