Everyone says they break, this and that. I've seen te37's break. Doesn't matter how they are made, you nail a curb straight on you'll do damage to any rim.
My only complaint is, they have gotten more expensive in the past few years. I'm looking at the MXR's...but they're $1000 for the set. I paid that for my old axis wheels new mounted with tires. Also not much cheaper than my 5zigen f10rc were a piece either. In fact, actually saw a sale on those for less than the rotas