These floors offer years of service and maintained properly, will stay in good condition.
It is essential that all seals are applied correctlty to both the tiles and grout to make sure the floor will perform to specification.
You will need to carry out regular periodic maintenance to keep the floor in good conditon.
There are a varirty of Stone products available and some will be more suitable than others depending on the location and construction of your subfloor.
For either product, some instances will require suitable floor preparation and a de-coupling membrane to minimise movement.
If not installed correcly, your tiles will crack!