After I've been looking forever for a good prepaid card, I decided ultimately to Simyo and I am very satisfied. The network is fully in order and costs are also very good, 9 cents for SMS and phone calls I find super fair just for a prepaid card. Internet costs, you can not compare now with a contract, but that's why it's also a prepaid card, and the price I find in order and that you can not get more than 39 is very reassuring.
All in all I am very satisfied and would recommend it to anyone who does not feel like a contract.