These headphones are by no means perfect, and for the money this might be prohibitive for some people. The main flaw is that the higher range of sound isn't as strong as the excellent and thumping bass. The result is still a superior sound to most sub 100 pounds headphones, but perhaps not as good as other mid-range models.
The bass on these is astonishing- clear, thumping, and never muddy or dull. It can, however, overwhelm higher sounds so if you enjoy bass-heavy music expect this to be the most prominent sound you hear.
I listen to a range of music, blues, world, and rock mostly, and everything has sounded crisp and strong through the Beats Solo.
The design of the headphones are excellent- a really classy design and the finish is particularly stylish. The earcups sit on the ear, rather than over it, and as such you do get some noise leaking. So expect people around you to hear some of your music.
The construction and quality can't be faulted- even the cable is tangle-proof. In addition to controlling your iPod, the controls also work with a MacBook. Since this will be my primary source, it was a welcome and unexpected bonus.
These are my first higher-value headphones, and I'm not disappointed. Are they worth the money? Hard to commit either way- great design, great bass, and a strong overall sound, but these won't be mistaken for the very best in high-end audio headphones, but then again they are half the price of these top end models.
Conclusion: recommended for those looking for great sound in a stylish and well constructed design.