Okay here it is and I'll keep it really short. The store I visited only had the P200 and below models and the opinions I express are for the P200 only. Bottom line, it's perfect for it's intended mobile listening purpose. It looks like a closed unit, but if you look closer, you'll see openings on the out edges of the cups, so it does leak sound in and out, but not as bad as fully open headsets like Grado's. It's built very well. Style and color depends on personal preference I guess. Frankly, I wouldn't dare wear the Ferrari red version outside without feeling like a complete idiot, but that's just my opinion. It comes with three removable cables (one has iphone controls), an adapter for the larger headphone jacks and a cool carbon fiber looking case with a nice Ferrari badge stuck on it.
I can confirm that this is a proper bass-heads headphone (in comparison to my Beyerdynamic DT770 32Ohm LE). It's right on par with the Beyer with more forward mids I must say. This is not the kind of headphone one would use for critical listening. It lacks detail and resolution, but then again, if you are out and about, with background noise, etc I doubt that one would be able to concentrate enough to experience that level of detail.
I used many songs for listening. But the short list of what I liked through these are
1. Bass mechaniks - Bass I love you (This set produces proper sub bass, just like the Beyerdynamic DT770s)
2. Babyface - When can I see you (percussion sounds fuller thanks to it's more forward mids than the Beyer)
3. Eric Clapton - Layla (live version) - This is what I meant by "lack of resolution". Compared to my Grado GS1000i. The guitar reverbs weren't satisfying, but the grado's are almost 4 times the price.
Even the Beyer's have slightly more detail in the guitar notes (the organic crackle sound you hear sometimes is lacking in the P200). Would I take it over the similarly priced Beyer? No
Hope this helps.