I have commented before as well - I think that X2a has been extremely stable for me, and for a lot of folks.
I keep reading posts that issue blanket statements about the bugginess of X2a, and of its instability, but when you look back through it all, and I have participated in a whole bunch of assisting folks with specific problems, these blanket statements are just not true.
There ARE no global show-stopper crashes going on with X2a, and while some population of folks have individual issues, another population keeps indicating that they are quite happy with the stability in X2a, and with what they feel have been workflow and feature improvements. And to the best of my recollection, not a single one of the issues I have participated in resolving have ended being caused by X2a - but rather by either operator error, plugin problems (mostly 32-bit third-party running in x64 X2a), and interface driver problems (sometimes settings, sometimes drivers).
There are folks who think X2a walks on water, and those who think X2a is a dismal failure. Excluding the fringes on both sides of it, X2a has some annoyances, but has in fact been globally quite stable, and for those with repeated crashes, as I indicated above, that has without little or no exception (again to the best of my knowledge), has not been from X2a itself failing. There are even workarounds for most of the things that are annoyances.
I look forward to evaluating X3, whenever it shows up - seemingly getting close now, and if the base product is as stable for me as X2a has been, I will cheerfully explore whatever new features it includes, and following my evaluation I will either choose to upgrade or I will choose to cheerfully continue to use X2a.
Bob Bone