Fluffy Mackerel Pudding

My first impressions from the PHB are that combats are expected to be long. Characters have a lot of HP and a lot of healing relative to the amount of damage they deal, and they got rid of most of the quick battle ending spells (save-or-suck, instant death, etc). But it also seems like everyone attacks every round, even when they're also buffing, so maybe it moves fast? We'll see.