To put it briefly: the expectations were not only met, but exceeded.
In less than 20 minutes, the powerline network was making it ready furnished and the latest device software (current version FRITZ! OS 06:05) installed. The user interface is intuitive and self-explanatory; All important settings are configured quickly.
The WLAN adapter 540E I installed in the living room and was able to equal even connect our TV set via LAN cable to the Internet. The wireless range is now all over the floor super, the links are 100% stable and on the terrace I have in the signal strength even nearly full stop. Lt. Powerline Software is the transmission speed of 120 Mbps. While these are long no 500 MBit as advertised by AVM, but it means also "up to 500 Mbps" and the transfer rate is now time depends on the individual circumstances in the house mains. For surfing with DSL 4000 speed enough for me but fine.
Conclusion:
Certainly, there are also cheaper solutions such as TP-Link, but proven product quality and high reliability, the easy installation speak for AVM. I LIKE IT !!!