Generally speaking these are not a great idea, they slow your data throughput, double you RF channel usage and don’t add much, other than an extra power supply.
Because the ESP8266 has a poor signal range. I have testes the signal strength of the ESP07s. It is huge. Afters 100 meters, I still could watch YoutubeVideos.
the other reason why I don't want to use the "ready-to-go" code from "martin-ger" is: there is no free space allowed on the SSID. Like this:
"MySSID" <-- this is allowed
"My new ssid" <-- this is not allowed
So is there really no way to bridge the ESP8266 conenctions ? please