High affinity D3 > D2 partial agonist. Very different profile from olanzapine/quetiapine/clozapine. Looks like abilify except for D3 > D2 and actually even more affinity for the receptor. Would expect lots of akathisia, minimal sedation/metabolic derangements/cardiac effects.
Seems like pharma is trying to push new mechanisms (in this case D3 action & partial agonism) and is staying away from low potency atypicals for fear of metabolic problems. Doubt we're going to get anything that works better than olanzapine from this approach.