Exposed concrete - Advantages / Disadvantages?

And that stays like this now?

Matter of taste. For me, it has something of an underground parking garage.

Oh no, there will be another layer of primer with just a little bit of color on top, then it will look much, much better

Namely like this:

Hello,
the thread is already a bit old, but I am very eager to know which concrete filler you used, what you used for sanding, and which primer/"wall paint" you worked with.

By the way, it looks awesome!!!
Thorsten

Thank you, we used Sopro BS467, but not over the entire surface, only at one problem spot. I don’t remember which primer we used, but I think it doesn’t really matter. The main thing is that it’s clear and binds any dust, etc., thus preventing the concrete from sanding. I also don’t remember which paint was used. But again, it doesn’t matter, as long as it’s gray. I believe we used our white Bio interior silicate paint and mixed black tint under it, but I could be mistaken. We worked very slowly, starting with very little paint and a lot of primer, and then mixing in a bit more paint with each application until it was right. It worked great.