The filter holder is practical with the tamping lock and with the help of the ejection button. I prefer to say "ejection aid" because it only pushes the grind, not eject. On the last received model, the ejection is easier because the container milling has a slightly conical shape and just type in his hands holding the filter so that the grind is ejected. But the filter holder does not stand 10 years strong shoulders that the maximum greenhouse plastic handle and ends up breaking. So be careful not to be too brutal.
I bought it on the manufacturer's website where I found the best deal. And where I had taken the precaution to register my machine. Comparing quotations worth be made on all these consumables (filters and descaling products).