The sound is described like creamy or thocky.

You can get aula f75 for cheap, arround 50$, there are plenty of sound tests on youtube as it's very popular.

I got that version and I am happy, but if I was to buy a new one I would get the full size f108 because it's important for me to have distance between arrow keys and other keys. And tbh I would just get an apple keyboard or something similarly slim because it's more confortable for me. However for thicc (mechanical switch) keyboards, aula f75 has great specs and sound at a very good price.