I love the changes to SAM. I'm glad they didn't mess with the identity of the job and rounded out the skill set with the new abilities.

On the topic of Shoha, I actually think it will be a useful ability in boss fights simply for the fact that there is always some amount of downtime during the fight to get your stacks up. Tsukiyomi comes to mind with the long transitions. The only change I would make to it is potency increases. 500 for 5 stacks is way too low so hopefully they will increase it.

As far as Hagakure, though we'll lose the complexity of when to spend Sen, I'm very pleased they changed it to Ikishoten. What we lose in complexity, we gain in our burst phase. I'm already trying decide if Higanbana is worth it as part of our opener vs. a potential 3 Setsugetka (I use the 3 Sen opener).

Personally, I've always found the complexity of the job in Third Eye and using Seigan. I was really hoping we would get a AOE counter but sadly not this expansion.