If you take a listen in a shop, you might think they sound good.
Most think that lots of bass = good sound. Not true.
You do need bass and with headphones that can be tricky, but you also need clear mid and high frequencies.
I work in broadcasting and I would avoid them, even for person use. The word "Professional" in that product name is misleading.
If you're seriously looking at spending that much on headphones, look elsewhere.
I would look at Beyerdynamic, Sennheiser, AKG and Shure (as mentioned).
Try:
Sennheiser HD25 II - £125AKG K550 - £175Sennheiser HD650 - £275Beyerdynamic DT250 - £136Headphones are personal thing, so you should really go to a shop and try some out to see whats comfortable on your head