Features to consider when selecting tiles

Hello everyone,

On Tuesday we will be sampling our tiles.

Are there specific characteristics we need to consider?

What do I mean by that:
With laminate, for example, there is the abrasion class that you have to keep in mind. A low abrasion class means that the laminate will wear out faster with correspondingly heavy use.

Is there something similar to consider with tiles?
I could imagine, for example, that heat transfer and "heat retention" depend on the tile thickness or the material.
Possibly there are also certain characteristics to consider regarding the cleaning of the tiled floor (tiles made of material XY are easier to clean than tiles made of material Z).

The question goes in this direction.
And now fire away. What should one pay attention to?

There are also abrasion classes for tiles. Bathroom tiles, for example, are not suitable for the entrance area.

Thermal conductivity can be disregarded, as tile material is basically the best for underfloor heating.
Dull or rough surfaces are the most natural-looking, but if you wear socks, you are more likely to get holes.
Polished surfaces are, in my opinion, the most maintenance-intensive. Solid colors as well.

This is also ahead of us. Friends advised us to definitely test the sample tile at home to see if stains remain. For example, they spilled red wine and coffee and let it sit overnight. Only after this test was the final purchase made. In other forums, polished porcelain stoneware tiles were discouraged because they did not get properly clean when cleaning. Permanent smudge films were mentioned there. As said; these are not my experiences. Maybe someone here in the forum can say something about it.

Our tiler was enthusiastic about our tiles because they were solid-colored. That is probably another tip I can give you. If cracks appear here, it wouldn't be too bad because the same color continues beneath the first layer.

We also made sure in our tile selection that the tiles are not too smooth. That way, you don't see every speck of dust or hair.

Yes, full-body color is good in case it ever gets a chip. It won't be immediately noticeable then. It is also important (if you don't have a lot of money) that the format is not chosen too large. For large formats, usually from 30 x 60, the installation effort is higher, and a tiler often charges accordingly. Large formats also tend to bow and are no longer entirely flat...

So - thank you very much for the hints. The sampling was successfully completed.

As expected, it got more expensive - only the tiles for the utility room and the storage room have become cheaper.
Possibly the tiles for the hallway / corridor / kitchen are a "doom for the baseboard". When I mentioned it, the consultant denied this - let's see. On the other hand, we have always worn slippers and rarely walked around in socks only. Only my daughter still needs to be trained for that.

All tiles will be fully colored.

Living room: wooden-look tiles
Kitchen/hallway/corridor: porcelain stoneware tiles (with a Mediterranean style) with a grain where dirt is not immediately visible
Bathroom: walls cream-colored and floor kept rather dark

I know - a great description, but I currently have no further details at hand and will only receive the complete offer (with names, etc.) later.