It is an established site in Germany.  I am uploading as it is the only way to tell if it is worth it.

Just checked, they translate the keywords. I recently submitted images with English keywords and I can find them if I switch language to German and search with German keywords.

@takestock As I said elsewhere I am doing well on Panthermedia. This month I already have a return of about 1 Euro/image. This is less then istock but better than SS and the rest on a per image basis.
Next month I think they will also reduce the commission from 50% to 30% for those who sell their stuff on the micros, so I espect my earnings to decline because of this.

However, you have to be patiened there, often sales reports come in a month later. And I am mainly selling penguins, I do not know how well other images sell there.

If taken outside of context, this phrase sounds just great ! 

I have about 100 pictures there - less then on other sites because until recently I had to translate everything into German, even for me as a native speaker that was a big hassle - and have only sold about 3 pics in the year or so I have been uploading.  Those 3 pics netted me 50 Euros, mind you, but still ....
Uploading can be cumbersome and just recently my perfect record (100% approval rating) has changed to a 100% rejection rate (only for like 5 pics but it bothers me nevertheless) so I am not sure what to do about them.  Traffic is very low and I think I'll just keep uploading at a low rate for the time being and see what happens but I am not sure I'd join again.
Hope that helps,

Tina