It failed (hopefully to be fixed in the re-release, when I'll be giving it a chance) because of the terrible reputation it immediately got with reviewers. At least, that's why I never even tried it.

And also oddly enough because we knew it'd be fixed but that it'd be in one giant update, so I know I was one of many holding off until I heard about this giant update coming out. Maybe it would've been better for them to say yes there are problems, but we'll be fixing them incrementally starting immediately. Maybe I'd have joined, knowing I'd be seeing improvements over time.