I own 12+ pairs of IEMs. These are by far the best sound quality. No brainer at this price.
I, too, have many, MANY headphones of all types (Etymotic, higher-end Sennheisers open and closed), and bought these in a previous Woot offering. They are MY FAVORITE. Best IEM I’ve ever heard. Great quality. The ceramic housing takes a little getting used to (a bit heavier), but OH MY THAT SOUND! Don’t hesitate. I might pick up a spare pair.