I am very happy with the Rocket products. But I don't have any experience with the Apartmento model. I find that they can be service at any reputable service center, and my experience has been for a reasonable cost. They appear to be a straight forward design. I do not have any experience of the Magica.
I think both the suppliers you mentioned would be good. There may be other that are local as well. If you can find a supplier who will check and adjust the machine if required it would be worth it. Then you know it is set up correctly.