I had a lot of difficulties, simply because everything is in german. You can get quite far with google translate (And asking my german friend) but it was very confusing.
I am overall happy with the purchase. It was delivered in good time, and when I got an email and didn't understand (cause german) I wrote customer service and got a fast reply with the explanantion...
Die bestellung war super pünktlich u die ware war top in ordnung.