ok; 33 days delivery.
Took more than two months to arrive in Greece, but it finally is here. It's not the seller's fault, as he sent it out quickly, but maybe they should use a different shipping method/company. The item itself looks like good quality for the price, but I have not yet checked the function. I'll leave an additional feedback once I have tried it out.
I have now tested the relay, and it works perfectly. I use it together with a z-wave door sensor to signal power cuts (and react appropriately when the power comes back). Installation and wiring was easy. Highly recommended!