I did not mark “Very poor because I am grateful for the descriptive boxing outlining the skin tones the device is most effective/ intended for . And even further for the very informative user guide booklet supplied in the box. It was here that I decided the safest bet is for me to return my Flasher 2.0 device out if concern for my richer skin tone and desire to avoid burning or hyperpigmentation and other possible damage . The Happy Returns affiliation was a relieving method to discover as highly convenient a return option . Unfortunately, I was looking forward to trying it out . But better safe than sorry .