I have the Parcours Strade wheelset which came on my new bike. They seem to be really well built, and are very fast. I ended up spending a fair bit of time off road on them by mistake on holiday and was not concerned, as they really do seem super robust. I have approx 2.5k km on them and they've not missed a beat and have remained true.
I used to have boras on my old rim braked bike which I absolutely loved (though I definitely would've been concerned off road on those, largely due to them having much thinner walls,) and while the newer disc bike perhaps does not have the same sense of snappiness as the old, the newer bike on the Parcours wheels is in fact faster overall and I attribute this largely to the wheels. This of course is impossible to quantify as there are a number of other differences between the two bikes including going from 25s to 28s, qr to TA, old frame shape to new etcetc.
Either way I'm very pleased with the Parcours wheels and cannot imagine wanting another wheelset. No idea who makes the hubs, probably rebranded novatec or some such. I will probably strip them down and inspect the bearings after the winter. I would've been more at ease with the boras (or indeed on DT Swiss for example) in this respect, but am not massively concerned. I really liked the specs of these - but equally would not hesitate to go LB rims / CX rays and have them built up locally per previous suggestions, if these hadn't come on the bike I bought. I hope that my impressions of the wheels may be of some help