Hello,
We have 3 showers, 2 of which are level with the floor.
For the level showers, 10x10 cm mosaic tiles were cut from the floor tiles.
One of the level showers has a wall drain, this is the main bathroom, it works great, the water drains without any problems and cleaning is also completely normal.
The other level shower has a centrally located floor drain, which works just as smoothly.
I think if it is done properly, it will work as well.
However, I wouldn’t make the decision based on 600€, but rather on what you like.
Otherwise, you might regret it and the other options don’t come for free either.
Best regards
Birgit