HiFiChris posted a review on Head-Fi of the Westone 4R IEMs. I am very surprised that this is the first review of the Westone since starting this site. These were one of the first IEMs I purchased when I started getting back into IEMs. I still use them regularly today and love them.
Summary:
Pros: superb resolution, very wide soundstage, quick bass, comfort, case, accessories, cable, relaxed presentation if you’re into that
Cons: soundstage has got about no depth, 5 kHz dip makes the presentation very relaxed, sound signature not for everybody, short memory wire