Satisfied after bumpy start now

As technology amorous and trained electrical engineer I have accepted a couple of torments during installation:
The manual is just bad.
The module will only fit very tightly into a switch box. Box terminals match the best
Will no longer inside. I have only the 3 core switch line are fortunately in the can. The Teach has almost a failure of the "project" means. Nowhere I could take the train 'the instructions of the remote control (HE 844) on channel 1 (Dip switch 1 on the battery compartment) does not. Through trial and error I have found 2 channel (Dip switch 2 on - off 1).
All previous devices had now just balls to be trained on channel 2.
I have also found that a short about 1 sekündiges pressing enough to start the learning phase (red LED flashing).
A press> for about 10 seconds, the LED can blink faster, which means I do not know.
The learning process, I have ultimately appropriated by Youtube.
I also own the HE853 USB interface that directly Teach allowed, this fact is due to that I have not complained about the device.

Assessment:
- Poor manual.

- Relatively difficult installation due to the size.

- No feedback channel (warning device on the remote control / USB adapter)

+ There is no neutral conductor required, which does not exist in a switch box often.

+ Setting the brightness value is well resolved.

+ The bulbs are dimmed slowly to conserve.

+ The old switch is reusable.

+ Control via PC with USB adapter.

+ Good Value.