I recently just got my hands on a pair of W30s. They are actually quite well put together. The pictures honestly do not do this IEM justice. The interchangeable face plates are very flush and blend in nice with the overall look of the earphone. While most of the plastic used for the earphone has a dull look to it, the faceplate adds a nice glossy touch to the IEM which looks pretty nice in person. The W30s are light weight and well built. I can't imagine anyone being afraid about the durability of this earphone when it's supposed to sit on your ears instead of being exposed to potentially forces that could damage it. I have left these earphones sitting in my pocket while out and about with no issues. It may feel cheap because of it's light weight but I think that is just a testament to Westone's design. To give the potential buyer peace of mind, I have changed the cables on these earphones numerous times and it has not done any damage to the earphones. Removing and putting the connectors back is very easy and takes little to no force. Like others have noted in this thread, there is a slit or opening where the connector is located. As others before have also noted, is that this is Westone's design decision. You might like it, you might not, or you might not care at all. For me, I don't care. The earphone functions as it's supposed to.
As for the sound of these earphones, well that's a different story for a different time. I will need more time with these earphones to really know what I want to say about its sound. I was a long time fan and owner of the UE Triple.fi 10. Unfortunately, I somehow misplaced them and can no longer find them anywhere! So I did some research and decided to check out the W30s. Will let you guys know more of what I think later