Can anybody help me with a Witchwarper with Mystic archetype? Need advice on which feats to take

I want to play a Witchwarper who has healing magic, so Mystic (healer) archetype seems to make sense.

I'm new to the game and the options are a bit overwhelming. Is the vitality network worth it? It seems like at level 4 you either get that or basic spellcasting. Can I take basic spellcasting later if I take vitality network at level 4?