Also, how well does Psi-Panic work? I'm iffy about it, mainly due to feeling that it will simply give the Aliens a free turn to shoot at me early.
In my experience, Panic usually makes enemies hunker down for several turns, effectively removing them from the fight. That was on Normal difficulty, though, and I wouldn't put it past the game to give them more attacks at higher levels.
In my experience, Psi-Panic has gotten my people killed. That thing where the useless recruits suddenly gain godly skill during a panic attack and critical kill an allium? The alliums can do that too. Psi-Inspiration is pretty useless unless you know you're about to have a panic spiral or your entire squad is Gifted.
The aliens seem to have the same vision range as your guys now, so you usually won't get sniped by enemies you can't even see, and explosives have been severely nerfed so you won't get your whole squad blown while they're still climbing out of the Skyranger.
That said, you can get sniped by enemies you can't even see, it is just rare. In a way, that makes it all the more terrifying.
Explosives are....interesting now. Grenades are low-damage and are the only thing that goes exactly where you tell it to every time. On the flip side, Allium Grenades are high-damage and go exactly where they want them to every time, and unlike you they have extreme throwing range.
Rockets are where it gets interesting. They're always a 90% chance to hit. You'll likely make extensive use of them. But eventually It will happen. The one time you really, beyond all hope, need a rocket, you will miss terribly. When It happened to me, I was trying to kill some Chryssalids who were about to eviscerate my Colonel. Instead, Corporal McIdiot fired it right in my Colonel's face and killed her.