We recently returned from Poland, and the Orange sim card worked great. When we were away from hotel wifi, we would switch to the Orange sim service... it was fast and easy.
My significant other bought these for use during our special first night. They were awesome! We utilized them all over Europe and didn't need to get new über costly SIM cards upon appearance.
Introduce was a breeze (we are utilized to it as we travel regularly out of the country) after arriving in France, and we involved them in Germany, Latvia, Estonia, Sweden, and potentially a couple of more nations. They didn't work in Russia, yet we anticipated that. It was a truly incredible buy and I can't suggest them enough!