Djoachim,
Bonjour et Bienvenu au HB!
I noticed that you responded to a post that was a couple of years old. But I will respond to you so that you don't feel lonely
I too have used the "Barista", as it was my first espresso machine. Pretty impressive for a first machine. The Profi Estro that you are talking about looks to be a winner in the market. There seem to be a few all in one, semi-automatic machines with built in burr grinders. Even the highly regarded Rancilio Silvia has a sibling with a built in burr grinder! I think that they are fairly rare though.
I have a friend who is a proud owner of the Profi Estro and loves it. I want to play with it and see if I can get a hold of a non-pressurized portafilter for it. I hope that the grinder can grind fine enough for a non-pressurized filter, if so, I think it will give pretty good results.
Salut,
Chris