Simply perfect!

After it did not succeed, with an improving "CM3 WiFi Repeater Access Point 300/150/54 Mbit (WLAN wireless LAN connection and amplifier) ​​AP 300/150/54 Mbit" my wireless reception quality, I decided a FRITZ! try device.
The repeater was used quickly by Amazon, is smaller than I had expected after the pictures and can use the installation instructions after 5 minutes use (in conjunction with a Speedport W502V). Both the manual and the user interface are straightforward and logical.

The signal quality is excellent and the user interface is intuitive to use. You can define start and stop times for each day of the week and if everything is working, you can turn off the LEDs of the device completely.

Everything is well thought out and functional. The additional expenditure compared to my first try was worth it