Instruct: Classify the given Amazon review into its appropriate rating category
Query: Do adapt USB TO USB-C but slow down charging significantly.

These micro USB TO USB-C adapters allow us to make use of our current micro USB chargers. But they significantly slow the charge rate. If you are using your phone they do maintain the current % of charge but do not make any gains. At least triple normal phone charge time using the adapters vs buying new USB-C cords.