Eesure posted a review of the EO323 IEM on Head-Fi.  He felt that these budget IEMs were a great value and definetly worth more than the $60 being charged.  I have the triple driver version which appears to be in the same housing.  Love the sound but found that they can become uncomfortable after an hour of so.

Here is Eesure’s summary:

Pros: Smooth extended treble, liquid midrange, strong, if a little slow, bass. Great looks. Great accessories included.
Cons: Cable doesn’t detach. Can get muddy when played LOUD.

EO323 Review