Painting fleece or plaster?

Hello everyone,

We will soon be carrying out painting work in the new building. It involves drywall partitions with Rigidur gypsum fiber boards (commonly also called Fermacell) and a regular gypsum plasterboard ceiling. We want to achieve a fine texture visually.
We will do the puttying work ourselves on tack points and joints, although the wall surface itself already has a Q3 finish.

There are now two proposals on the table. Either to have a fine lime plaster applied directly or to install a painter's fleece and then paint it. Perhaps also a mix of both on different floors or in the children's rooms (there are two small children).

What do you think are the advantages and disadvantages of both options, also considering the expected costs?

We also installed Rigidur boards. We did a lot ourselves. On the upper floor, we only had the ceilings plastered with 1mm fine plaster. The entire stairwell was also plastered. Despite using the same plaster, the stairwell looks different from the upper floor ceilings because different tools were used. Plastic float vs. float with foam rubber. We glued painter’s fleece onto the remaining walls and painted them. We like this mix, even though it’s certainly not perfect. But I question whether painting work can ever be done perfectly. With painter’s fleece, it also depends on the paint roller how smooth it gets.

Plastering and/or wallpapering we would have done, we only do the filling ourselves.

Does it have to be Q3 for painting fleece, meaning fully filled? How does it compare cost-wise between plaster and painting fleece?