Looks fucking awesome to play honestly, something I always missed dearly in the original Rome, especially because it was quite a big thing in the Punic wars and such. Seems they implemented it exactly as I imagined it. Fire arrows look good, a lot better than the javelins earlier. Animations for boarding are quite impressive.
What I do really miss is a show of impact when a ship rams another ship, apart from the rams ending in complete destruction of one ship, there is barely any visible impact. The ship doesn't even rock, no splash, no cracking noises, no damage to the hull and flying pieces of wood, no rams getting stuck inside the ship. No sinking from the hole caused by the ram if they manage to pull it back out there. It is so blatantly missing for me when I watch this video that it really doesn't make sense to me that they didn't implement any of that.