this does look promising , I had been getting flaky results and nearly given up in disgust --- turns out the power supply for the esp8266 is far more critical than I thought . 3.3v seems to work much better than 3.0 (was having the flash the memory not always updating and sometimes becoming corrupt after saving files).
the 3v regulator on all of my usb-tty adapters has proved to be inadequate for the task of running esp8266 modules