Yes, it works with every internet provider. However, I wouldn't buy a 600Mbit/s kit, because the one with 1000Mbit/s only costs 2 francs more:

TP-Link Gigabit Kit TL-PA7017 KIT (1000 Mbit/s)

The advantage of the faster speed: the signals start at 1000 Mbit/s and up to the other end of the connection, there the speed is reduced, with a starting point of 600Mbit/s there may be less left at the end. This is normal with Powerline, because you will never get such a fast connection from a 600Mbit/s connection. With 1000Mbit/s, at least more speed remains.