I have a set of Superteam branded rim brake 40mm carbon wheels that I bought on Amazon a few years ago. For $350 my expectations were very low, but so far... no problems.
I bought these because I needed a cheap set of wheels for an older bike, and they've been great for that purpose. Even if they exploded tomorrow (which seems unlikely), I feel like I've gotten way more than my money's worth out of them. I run 28mm road tires and 33mm CX tires on them.
The rear hub is ridiculously loud, if that matters.