The blue LED lights, contrary to what is written in the description of the product, as soon as one puts the phone on the charger. No indication when the phone is charged. A shame. For cons, the charger seems to stop charging the phone when it is fully charged. After a night on the charger the phone is completely cold (well, room temperature).
The charger is non-slip material, which is a very big plus. It does not slip on my bedside table when I put the phone ....