We also had the issue... then commissioned Q3. The problem was as follows: the surface in Q3 was great (textured, just as you probably imagine it), until the plasterers started sanding down the bigger dents or filling them with gypsum plaster. Then the walls were perfect in terms of grazing light, but the surfaces were inconsistent - partly textured, partly smooth. In the end, my husband created something close to Q4 by applying a thin coat (with gypsum plaster over the entire area) and sanding, and I am glad about that.
At first, I also thought Q2 would even be enough for me, because I like the texture. But at least for us, it didn’t work out that way, not even with Q3. I would have Q3 done and, if necessary, have it worked up toward Q4.
I think it also depends on the workers and the materials. But I am convinced that our plasterers did not do anything wrong.
Q3 would have been perfect for thin painting fleece or a paint plaster. Just paint on it alone would not have been an option for us.