The 'Bird of Prey' and/or 'Double Nuts'..? I actually asked that question and generally got positive feedback (other than the single feedback response in that topic). Tighter joints than the YF-19 but there is no chest lock so it will flop about if you turn the battroid upside-down. Some people said that theirs were still a bit loose, but improved on from the original YF-19 release. It's basically perfect transformation with minor exceptions like the intake covers.
So it sorta sounds like there's an element of 'luck-of-the-draw' in there but it's better than the floppy mess that was the first YF-19 run.