Just be aware of the reasons for wheels costing what they do when you purchase. In life you do tend to get what you pay for.
I have these exact wheels, and have had no bother with them at all. They look great (dark grey decals), are fairly light and I have been able to set them up tubeless with very little fuss (Hutchinson fusion tubeless). I think at the moment they are on special offer as they are being superseded by a newer model, but for the price I think they are great.
Having said that, these are the first pair of carbon deep-section wheels I have owned, so very little to compare them to. Plus I've only every used them in good, dry weather and only for about 4 months so far.
PS - British Cycling membership gets you an extra 10% off at Chain Reaction. I did this and got a further £50 off, so they cost me £450.