I have tried a number of in ear phones and never found any to 'fit' or suit my ears. I saw these in a tesco extra store at half price and thought it was worth giving them a go.
Currently use sennheiser pmx200's but wanted something more compact and outdoor friendly. I was really pleased with the sound quality, and the fit.
Don't seem to stock them in 'normal' tesco stores, as I then tried to get another pair for myself, and my son loved them and wanted a pair, and we had to go to another tesco extra for them.
Amazon reviews are 5 star for these, and they sound as good as much more expensive ones that I've tried. Can't see them for less than about £15 delivered anywhere else, so the deal seems a scorcher to me - enough for me to search a number of local stores to find more of them.
Hope someone else benefits and finds them as good.