Philips KVA not satisfied

Hey dear community. After so many considerations I have treated me to the Philips fully automatic (EP 2210 or something). Since my budget was 300 euros there was not so much to choose from and I think the KVAs are all quite similar at this price range.
Aufjedenfall but I am not satisfied with the espresso and coffee. I have already set to the lowest grind and coffee as well as reference amount in different settings tried. The espresso tastes a little better now but the last droplets are sour. The coffee is too thin and watery for me. You can already tell by the color. And the last droplets are also sour like the espresso. As a bean I use Tchibo African Blue. I bought it because it was only available in a small package. What do you think about this fully automatic machine?
Do you get good results with it? Would other beans bring much better results?