Since you are looking at the newer ones my experience may not apply perfectly. I have an older set of HED jet 6. I forget the year but I bought them used some years back. They are still running strong but starting to show their age. The braking surface is not as grippy as it used to be and on the rear wheel the carbon fairing is coming loose around where the valve stem is. I still ride them nearly every day and have raced on them. HED makes great wheels and most likely I will buy a set of the newer ones once these bite the dust. Whatever ones you get, if you take care of them they will take care of you.
My Lynskey R420
with Chorus 11
If you are interested in a Weight Weenies kit I no longer know what you should do.