01
Auto-arranging slides versus a finished deck
Beautiful.ai's central idea is the Smart Slide: pick a layout, add content, and the slide re-balances itself so it never ends up crooked. There are more than 300 of them. It is a genuinely good answer to the problem of a person building slides by hand, and it keeps the person in the driving seat the whole time.
Skiaw's answer starts one step earlier. You describe the deck; the engine researches it, writes the argument, chooses the structure and designs every slide before you see anything. You then refine it in conversation. Nobody picks a layout, because picking a layout is part of what was delegated.
Neither is strictly better. If you enjoy building the deck and want the tool to stop it looking amateur, Beautiful.ai fits your hands. If the deck is a chore standing between you and the meeting, Skiaw removes more of it.