I think very little. I'm not convinced that what we're witnessing in this thread is a degradation in RK performance. Barely anyone here was using RK in 2008 when I started here. Since then, I'd guess that they've become the #1 vendor for many, if not most of us. For all we know, they are still messing up the same 5% of orders (fictional estimate), it's just that it's 5% of a much bigger pool now.
Point being: IMO, the likelihood of a stuff is extremely minor, and the likelihood of them not resolving afterwards is next to nil.
Did you get to keep the Mirage?