It's always a balancing act between what's well-tested and what's sustainable, between what works well now and what may work better in the future.
IMO, it's a horrible idea to rely on any toolchain that new developers aren't learning right now.
ETA: I don't care how stable it's been. If it breaks tomorrow, how easy is it to fix it? How easy is it to find someone willing to support it? If the answer isn't "very easy," then it's time to switch platforms.