I am always on the lookout for audiophile quality sound at reasonable cost. This is a bargain! It works great all my earphones and headphones: from my 300 ohm Sennheiser HD560's to cheap 32 ohm earbuds. No additional amplifier is needed. The quickest, easiest, and most portable way to audiophile quality sound I have yet come across. Sound is clear and natural. This DAC is better than sound quality on most CD's. To get better sound, I need a better source, not a better DAC.
Practicality and sound quality are MUCH higher than its cost.
Less short version:
Needed a few days of burn-in to loose a very slight "harshness".
Sound is open and detailed, but not "thin", bass feels just right.
Powers my headphones (modded Sennheiser 202) to very loud levels.
Maybe not perfect, but unbeatable by anything close to this price!