In some details my review reads quite negatively. However, this should not affect the conclusion. The player has some minor weaknesses, which should not deceive the overall summary. I just want to avoid that people will purchase the Opus #1 and afterwards complain to me about smaller issues.
Once the music is neatly stored, either on folders or perfectly tagged, you have a relatively pretty player that delivers clean power to headphones. It does not distort anything and does not create any superficial wow experience – in a positive way. In addition, the battery finally lasts really long and does not need to be charged twice over the weekend.