I'm still using an antiquated The Laboratory 49 controller, with V-Collection 4, and I haven't had one single issue.
It has sat on my recording desk for 4 years now, and the only move was from the apartment to the house we bought 17 months ago.
I'm wondering if some of the issues reported are a result of handling. I know the keys are lightweight, and I cringe on occasion when I apply after-touch, but I can't imagine to see how this is a common issue. I do agree that the keys/action could use an upgrade, like the fatar keys that go into many synths as an O.E.M. standard, like most of the Rolands, Korgs, Alesis, & such.
I'm not trying to rain on anyone's parade, because I would be ticked too, I'm just finding this occurrence to be rather surprising. That's all.