Neugent Cycling C50T25 Carbon tubulars. Anyone using these?

[JerryLook]

I bought a set of alloy wheels from John about a year ago. Now I’m thinking about switching to tubs. He has this 50mm deep, 25mm wide set for about 850$ shipped.
They are around 1360 grams for the set. Around 100 grams lighter than my current alloy clincher wheels. I figure I’ll lose weight from the wheels and tires with this switch. Plus I don’t really get flats where I ride, and want to enjoy the better ride quality of tubs.

I’ve had good luck with my current wheels from Neugent, just curious if anyone has experience with these.

For the money, it seems like I can get some decent used wheels, but nothing really special that is new.