These headphones are amazing. They are extremely comfortable to wear and the sound is exceptional. No negatives

I have owned shure earbuds in the past. single driver ones because I didn't want to pay the money. Well, I am finding out more and more, you get what you pay for. And in this case, it's a good thing!! The sound quality is fantastic. You can hear every instrument individually. And for an avid METAL listener like me, that is very important. I liked these ear buds so much, I bought another pair for my girlfriend a week later. The only catch is you must get used to the proper way to put them in your ears. BUT, once you do it, you got it down! If you are a music enthusiast or a musician, these are buds are way worth the money!!! Also, I travel most of the year, these ear buds are an absolute must for frequent travelers!!! Kills all plane noise.....AND KID NOISE

I have been in search of quality, noise-canceling, in-ear headphones for a long time. In truth, I have delayed investing in a really good pair of headphones because it was always a tough cost-benefit analysis for me. However, I am also a professional vocalist and have been considering investing in a really good set of earphones that can serve as in-ear stage monitors as well. I am now so glad I purchased these headphones....the dynamic range and accuracy of these headphones is impeccable. The noise-canceling ability is, frankly, scary. I have never achieved such sound immersion and isolation with any other pair of headphones I have owned.

I use the in ears with my Iphone and on stage as in ear monitors. Wonderful sound, warm bass and crisp highs for all around great clarity.

Fantastic sound quality, most comfortable in ears I've ever worn. I am a musician and I use these on stage and off. Good buy.

I have used Shure earphones for many years in my helmet while motorcycling. I decided to upgrade from an earlier product to the SE425 for the durability and low profile fit. The design makes it easy to get a snug full-face helmet over the earphones without dislodging them. The cable is extremely durable and holds up very well to flapping in the wind at highway speeds. The sound is awesome, crisp tight base, and very clean highs. Very good sound isolation from wind noise when I'm not playing my music. Very, very satisfied with the quality and ruggedness of the SE425.

test these against others of similar price and found them to be the best

I was leary of the negative posts about these headphones, but am I GLAD I ignored them. I have had two other *high-end* in-ear monitors and these are great at 1/2 the price of the 500-series. The others died death by accidents (don't ask) and these are a welcome benefit of bad luck. Great sound, good design, stiff wires actually AID in keeping them in place. The custom mold offer is confusing, weak and essentially worthless- support a local audiologist.

Bought these to work as IEM's for live sound. They are very accurate and work as expected.

I own both SE215 and SE425.
Does SE425 worth 2+ times the price of SE215? It depends.
If you are looking for a piece of instrument that excites you by revealing every single details in techniques and emotions embedded in the diva's rendition, then you will find SE425 is that cutting edge gadget.
If you feel reluctant to spend over $200 for just casual listening, SE215 is more than enough.
To conclude, I recommend SE425 if you are a big fan of female singers (e.g. Mariah Carey, Celine Dion, etc.). SE425 is born for listening to divas.