"Best earbuds I have ever used and well worth the price."4.5 starson by K.McRea
Pros: Great sound, fit, and thoughtful accessories. Quality build and are the most comfortable in ear phones I have used. Cord is the perfect length (longer that the stock iPod phones) and it is thin and flexible.
Cons: As with all in ear buds I have used, bumps and cord movement are heard, and the included cord clip must be used when worn while exercising.
Summary: I had tried a $100 pair of Shures, and have Sennheisers CX300s. Had to take the Shures back because they just didn't seem to have the bass or impact of the my Sennheisers. The S4is have great but not overpowering bass and have great presence. You almost forget that they are in ear phones. They came with several silicone tips and I ended up using the largest (had to do the same with the Sennheisers). Without the proper tips, there is no bass.
I have read complaints that the cord seem fragile. It is thin and flexible, but to me that is a plus; it seems much less intrusive than any other corded phones I have ever used and so far I don't see an issue with their durability. The buttons area better than the clicker on the stock phones. I am using the phones with an iPod Touch and the voice feature works just fine unless there is a tremendous amount of background noise. Can't vouch for their use on a phone call though. They come with a handy pouch that protects them and allows them to be carried unobtrusively in a pocket. I just love the earbuds!