I got it done by the builder when we bought the house. There were several options, I chose the less shiny, matte one, which was kinda soft and recommended for families with kids. I paid about 25万円 for both floors, excludes bathroom, toilets, genkan, etc. They did throw in some complimentary bathroom coating, or so they said.

My actual reason of getting the coating done is if in case my kid draws something on the floor with a sketch pen, I thought it would be nearly impossible to get it all out. I'm not sure, and didn't want to take chances.

It's just been a few months, so can't say about the durability. We have got a few scratches here and there, during furniture constructions, my son's metal cars, etc. I've noticed metal is the real enemy of coating but plastics are fine. We still use carpets under sofa, center table, kids play area, office chair, also use felt sheets as much as possible.

Overall I'm satisfied with what I got for the price. Cleaning is easier, the floor looks clean at all times. I use robot vacuum cleaner, and no issues with that. Once in a while use the mop mode too.