Sphinx recently changed ownership, but not much else has changed. My personal experience with their weapons is that they're all first class. (I've had a couple of their 2000 series guns.) Very well made, and in effect, semi-custom guns, with the same care in manufacture as you'd find in some of the the better custom shops. That's why they're so darned expensive.
Their early CZ-like guns were in every way superior to the CZs they were based on -- but they cost 2-4 times more, and you'd expect some major improvements for that sort of price premium.