The versions I have been running are the NXT38C07 which are 25mm wide and 38mm deep, which are the ideal all round climbing and aero combination. I am running the Basalt braking surface which is a no cost option currently (through Travers Bikes). As I am the distributor in the UK of Nextie rims I have just added pictures, so you can make your own mind up. The photos were taken straight after a ride and the rims have not been cleaned or prepped in anyway.
I checked both rims for marks, scratches and chips and I found none. The NXT38C07 are rated for everything from Road and TT to cyclocross