Incredible stiff and improvement of aero qualities without the disadvantage of crosswinds instability. They feel shallower than they are. Superb construction. The nerve of enve leaving the carbon raw unpainted and with everything visible makes you feel that you got the best wheelset available.
The white lines where carbon bonds are normal and does not affect structure. its raw carbon. Remember every other manufacturer paints their wheels to cover defects, bonds, or quality issues but not ENVE.
Advise when installing tires: Follow video instruction on ENVE.COM. Do Not Use levels its super easy once you figure it out and you only need your hands.
If the tire shop complaints of tire installation (too hard, using levers, etc) do not take your rims there they will damage them or scratch decals.
The only feedback I would have for enve is that if this is a TUBELESS Tire only wheelset they should shipped them with tubeless tape installed.