Both points he makes about the exchange and repair policy seem pretty valid to me.
I mean, with Castle an MMM is an MMM, a Sidewinder is a Sidewinder. But with MGM there are so many customization options it's not practical for them to have every possible ESC with every possible combo of features standing by for an exchange.
And I think it's perfectly reasonable for MGM to want to inspect a controller to decide if it failed by a product defect or if it was user error before sending a replacement. We have to remember Castle does tend to spoil us when it comes to warranty and repair. Often times they'll replace something no questions asked when it could very well be user error (not us, we're all perfect, it's the guys on those other forums
).
I would really love to try one of the X-series, but at this point in time I can't justify the cost.