Should precast concrete filigree ceilings in the basement be left unplastered?

This room is about 2.75 wide... @te We will leave it like that, it is the HAR

Did you mean 2.75 high, or really wide? Sure, for the HAR that always works... But my question was especially about the living rooms. You can do that a bit cleaner and more carefully there, but it probably doesn’t look that good after all...

Tape off the joint on both sides with tape, then you'll get a straight edge. Like when painting.

Did you mean 2.75 high, or really wide? Sure, that always works for the HAR... But my question was especially about the living spaces. There you can do it a bit cleaner and more carefully, but it probably doesn't look that good anyway...

Really wide, although 268 high as well, but that doesn't come across in the perspective. The photo was once to demonstrate to you that it looks stupid with a filled joint. I would leave the joints open and scrape out the concrete residues and sand everything clean – not fill. That way you get the industrial look nicely.
And on the other hand to show that there can be joints in the filigree ceiling even in very small rooms.

Unfortunately, it's the only room where we simply left the concrete ceiling as is. Otherwise, I only have photos from the completely raw construction phase, so not raw ceiling and white walls.

We are currently also planning to leave the ceiling in our living area as exposed concrete. Is there a rough guideline for the room height one should have for this? We are currently planning about 272cm finished room height.

In our current apartment with 240cm, we definitely could not imagine it.

So if you are that sure about it, I would rather leave it. The 32cm won't suddenly turn a bunker into a church vault.

We are currently planning to leave the ceiling in our living area as exposed concrete. Is there a rough guideline for what room height one should have for this? We are currently planning about 272cm finished room height.

has exposed concrete in the living room, but I don't know how high the ceilings are there...