As yet, I've not had a single failure with any piece of commercial ham radio gear I've owned and operated in nearly 40 years. OK, the gear is usually QRP, working in a benign shack environment and not abused. Perhaps I'm just lucky.
I'm wondering if anywhere there is a "league table" showing how reliable various makes and models of ham radio gear are? It sounds like something that someone may have compiled but I've not seen one. The nearest are the reviews on eHam.net.