Yeah, I've been enjoying my Shure SE530 for many years now. It might seem ridiculous to pay $400 for earphones! But I've honestly got zero regrets. The SE530 are fantastic and about as good as you can get without custom ear mold models.
For a MUCH more reasonable price though, I'm really impressed by the SE215. The old SE210 earphones didn't sound as impressive. Technically, they were a bit more linear. But since the bass started rolling off up around 50Hz with the SE210, they just didn't sound all that impressive.
The new SE215 have a bit of a bass boost built in, but it honestly sounds great - especially for portable applications. What I really like though are the wires. They're nice and thick, so you don't get any microphonics - aka "cable thump". Microphonics are a problem with a lot of in-ear monitors like Etymotics or Klipsch, which are great otherwise, but suffer from that "cable thump" annoyance.