I was given my first pair of Etymotics about two years ago as a meticulously researched present from my wife: it simply transformed my portable music pleasure. Sound isolation is good enough to listen comfortably and clearly on the tube, and perfect inflight. In fact when I lost them last year, I ordered a replacement pair immediately, without a second thought. My only slight misgiving (hence 4 rather than 5 star review) is that they lack some punch and depth compared to some of the higher priced buds you can buy in 2007. But at this price, these are worth their weight in gold.
A fantastic deal Simon 10/1/2007
I bought these as they were rated the top headphones for iPods by avreview.co.uk.
The sound is fantastic and not overally bassy or tinny either. A great deal for just under £64