Blakewrote a review of Mercury Wheels M1 Disc Brake Wheelset - Clincher on October 1, 2018
Familiarity: I've put it through the wringer
They may not be the lightest wheels on the market but they sure do roll fast. I've been using them on a CX commuter bike and they've been solid. They fit 40c tires pretty well, although setting them up tubeless took a little extra work.
The hub bearings have held up great to very poor conditions and have stayed true. Would definitely recommend