The only (minor) issue I have with 6.0 NIN is that Raiju stacks fade if not used immediately. Otherwise, I really like all of the changes and the rotation feels great. Raiju isn't awkward at all - it fits nicely into the mid/tail end of TA, synergizes well with Bhavacakra and provides great utility on certain fights (Zodiark EX for example).

The complaint about Raiju being a gap closer are over-exaggerated.