We have a lot of porcelin tile and now after 4 yrs I will have the grout cleaned and resealed in the kitchen/entry. It isn't awful, but needs it. We have different tile on our lanai and the grout is permanent - no re-sealing necessary ever. I love it. Sorry I don't know the name, but it is out there. My sister in law has the tile hard wood floor look in her bedrooms and it is beautiful! Think of sound and feel - tile rooms are noisier, but it works for us in FL.