Review (3/5): Charger stopped to work in couple months after firs use.
It worked perfectly, but in couple months the charge light indicator was off. It came on couple times and after it died completely. I though that it was only indicator, unfortunately it stopped to charge the battery. Now it is fully dead, even on the weakest mode.
Update score from 1 to 3.
After they were informed they sent me a new replacement almost immediately, so customer support is good. Receiving the new product I figure out that the product itself was not defective, just charging cable died.
Still minor minus: the charging cable goes into the devise not easily, it could be a problem.