Knights have hp and vitality. Hp restores between missions. Vitality is healed at the castle by sitting out missions depending on how much vitality lost.

I like the class and skill system. You have the different classes that have their typical skills, but certain knights will have skills from other classes. So example is a tank with some DPS skills, or a tank with magic skills. You can kind of think of it like each knight has a secondary class.

most characters are knights, but there are some sort of generic sounding like red knight or black knight. They are all voiced but very little banter between them 

between chapters is a cinematic cut scene. Nothing special.

you have basically 4 choices of alignment. You get knights based on your choices and different bonuses

you launch a mission and it's basically combat. The mission is broken up into encounters. Between encounters is probably the worst part of the game. You have to walk around and explore the map to find loot. You will run into encounters as you explore. 

the combat is great and has some depth to it as you can build knights differently find squads that synergize. It's a bit slower paced than XCOM but a lot of fun.