Haven’t heard anything that made them stand out as particularly unreliable in the sense of longevity.
That being said, it depends in LARGE part on the way you treat your gear. If you toss your controller in your backpack 5 times a week without a decksaver and are very rough on it, clearly it will affect the unit more than when you have it built into a flightcase which it never leaves. I keep most of my cables hooked up when I store my controller. This prevents lots of plugging in and out of cables. Not that they can’t handle it … but … easier to replace a cable once in a while than a connector.
I HAVE seen DJ’s ripping their controller out of and stuffing it roughly back into a flimsy backpack, nearly tossing it in the booth, jamming in the cables (including their own headphones) and taking off playing. Those are the guys that will have issues with their gear in the space of a year or two (depending on their frequency of playing/practicing).
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