Scepticism drives the search. Does it crack, does it stain, how does it wear in a kitchen: those questions come from somebody who likes the look and is worried about the substance, and honest answers convert them.
Applying over existing tiles is the phrase that captures the intent. It is precisely the promise that interests people renovating a bathroom, and it is a search with modest competition.
Cost is asked and dodged. A range per square metre with the variables — substrate condition, area, wet room or not — attracts the enquiries that are budgeted and deters the ones that are not.
Bathrooms carry the strongest intent. A seamless wet room is the application most people want, it commands the highest price and it is where the substrate questions matter most.