Used to own a pair of ep-630s, but after going through 3 or 4 pairs of these I thought I'd try a change (ep-630s are great, and I use my earphones a lot and don't treat them all that well, hence why I get through so many pairs!)
I tried a switch to sennheiser cx500 and hated them, far too bassy, silly in-line volume control that broke and not nearly as comfortable as my ep-630s. Do not buy them!
Decided I'd try these as they were only 3 quid more than the ep-630 phones, and have to say I really like them! Sound is more spatious, and bass is more responsive without being overpowering. Just as comfortable as the 630s and the construction feels a little more rugged.
Not 5 stars because creative are still fitting the straight headphone jacks, not the 90 degree jacks which last so much longer!