Hardwood floors are generally easier to care for compared to tile floors. Hardwood requires regular sweeping or vacuuming, in addition to the occasional use of a hardwood floor cleaner. Tiled floors, on the other hand, need to be swept and cleaned regularly and grout lines can be covered with dirt and grime. Because yes, you can retouch the grout, however, that can cause its own set of problems.
The grout will not have the same COLOR as the rest of the grout that is already in place and may look slightly different. Wood-looking tiles can also be a good choice for people with allergies, since tiles don't contain allergens like carpets and even hardwood. It's also ideal for pet owners. Hardwood is more durable in many ways, but tiles resist scratches on furry friends' legs better than wood, disadvantages of wood-looking tiles.
In their perfect condition, wood-looking tiles are 100% waterproof, but cracks in the tile or grout can provide entry points for moisture to enter the tile and cause cracks or other damage. Aside from that, in my honest opinion of having been a floor and tile contractor for 10 years, when I analyze features side by side objectively, in addition to appearance, hardwood doesn't have many “functional” advantages over tiles. If damage occurs, you can easily replace a single tile (or several tiles) without breaking an entire section of the kitchen floor. Hardwood gives you a smoother, stronger surface to lean on than most tile flooring and hard surface options.
Wood-looking tiles don't have to be sealed, but they can protect the grout from fading and the tiles from breaking or cracking. A moisture barrier installed under the floor (made of hardwoods or wood-looking tiles) is a great way to protect yourself from water damage beneath the floor layer. So, let's say you only have 40 to 50% coverage on a tile, if something heavy is dropped or something heavy is placed on the tile, that tile has a great chance of breaking because the bond between the tile and the surface is not strong enough. I think wood-looking tile would be a good and cheaper option, since the entire floor needs to be replaced.
Hardwood is also more complicated and requires more time to install than tiles, so the cost of installation can be twice that of tiles. In addition, do not hesitate to visit my gallery of images of floors and tiles, compiled from work I have done throughout my career. Floor removal and preparation are some of the most important steps in installing new tile or hardwood floors. At the same time, the clean look and beauty of a beautiful wooden floor is definitely something that Tile can't replicate (although Tile also looks beautiful on its own).
The biggest problem with installing tiles on concrete is that the concrete is usually not perfectly straight.