Since this thread was helpful in my search I thought I'd join up and share my experiences looking.
Man, I wanted desperately to buy the BW p7's. Out of the main four recommended in this price range (Senn Momentum, BW P7, PSB M4U, and NAD HP50's) these are the obvious style winners. I'm not a huge style guy, but come on...the leather, the steel..they're just dead sexy cans.
The PSB's look like someone failed out of Beats design school.
The NAD's look like rabbit ears on a TV or something you'd see on top of a 50's robot when on your head.
The Senns are OK looking but way to small for my giant noggin.
And I love bass. Well I'm not a techno junkie, but I do get in for some of what I call "downstep" that has some nice bass lines and smokey sounds. So I assumed the P7's were the way go.
You know what they say about assuming things...
Good lord was I glad I tested them in stores first. Bass heavy as some review apparently means "farty" to me. The bass was certainly heaviest of the group, but it was just too much and covered way too many other areas of the sound. Maybe they were bad examples, but I can only go off what I heard. I'm not an accuracy freak, but if I just wanted to feel some bass there are many others that would fit that need better.
Also though they have larger ear cups I felt a lot more ear pressure from these. I do BJJ and get my ears hit a lot and they're often sensitive. The way they rested on the head would not have worked long term.
So after trying everything I surprised myself with my choice. The NAD's.
One: I hate the name. I just don't like having NAD at the side of my head
Two: I DESPISE the looks. I'm shaved headed and saying they look goofy on me is an understatement. The stick out at the top is pronounced and the big plastic chunks at the side photograph well but look ugly in real life.
Three: They feel the least robust of all the ones I tried
BUT
Easily the best sound. And that was even before wearing them in. They got a LOT better to what I bought over just a few hours.
Soundstage is HUGE, for headphones, and I do feel more like I'm listening in a room.
I played songs I've listened to for 10-20 years and heard new things in the tracks...that to me was worth the price.
They're light on the head and I often forget I'm wearing them.
THEY FOLD FLAT (unlike the others)
Conclusion
If you're waffling on the decision and putting these aside because of the looks like I did, please give them a go. Easily the best sounding in the group. I went in ACTIVELY trying to convince myself to buy the BW P7's. I had the money all set aside and everything. Just wanted to test to confirm my internet research. I was even mentally arguing with reviewers who criticised them....thinking things like he's an old man, he doesn't understand modern music
They do understand music and they're being nice. One reviewer called it a "fun" sound as a roundabout way of saying not for serious use. They are solid cans, but really for 100 less and better sound, it's a no brainer.
But really both PSB and NAD seriously need to hire a better designer. Both products are seriously behind the BW in industrial design and are obviously way more serious. The only market share they're losing must be down to their design. If they launched a new one tomorrow with better design I'd turn around and buy it just to get this thing off my head. I HATE the looks....but that tells you how good they sound!