The other day I posted on what tools I use and was asked to make a new thread.
Setup and teardown are the bane of the residential tile (non new construction) one of the biggest issues has always been what to do with waste water.
The wetsaw is in my opinion a lot like a radial arm saw, when set up right it can produce great cuts but its not something you need at the jobsite to be efficient. Whats wrong with a wet saw 1, set up and water containment 2, what do you do in the winter 3, porcelain must be dry, a water film acts as a bond break. 4, Weight to lug around. 5, Slow compared to a snap cutter. 6, Slow compared to a grinder on notch cuts. 7, cut tile drips wet slurry all the way back.
I think that wetsaws may be the biggest constraint to efficent setting. Snap cutters will be next but here is a vid of how I run a grinder.