I normally use the HTX7's from Panasonic and thought I'd try these out. Honestly superb sound quality especially for £20! Bass is hard, but not overbearing and the treble is always audible. The little ear pieces being a little stiffer than normal give a better fit and help deliver a clearer deeper sound.
If you need a pair for commuting or running I'd highly reccomend these over anything in the same class, even as an alternative to the Beats stuff by Dre