As someone based in the EU but an English speaker I like to buy from .eu domains, the language will probably be in English and the shipping pan Europe while still priced in Euro with no import duties.
I trust .de domains too for the same reasons as that's a kind of default pan European domain mainly based on amazon.de and caseking.de.
I trust .de domains too for the same reasons as that's a kind of default pan European domain mainly based on amazon.de and caseking.de.