I have owned this pair since 2019, it definitely is a reference iem. I like that it does not color the sound in anyway. Just like the description on this page says nothing is exaggerated, everything sounds as it was recorded, as the artist intended it to sound like if you will. it sounds great with your daily typical mobile phone and easy to be driven, but it sounds excellent with any good DAP. I use them daily, they've gotten beaten up a lot and still holding up, very durable. I tried the EE Odin, compared them both. I prefer the U18T over the odins, I find the odin's low end is a bit exaggerated over the U18T. I've tried all sorts of different cables with these and found the difference was so meniscal and not worth the money for expensive cables. Overall excellent pair of iems if you're looking for non colored sound.