I mean everyone has an opinion and ours differ. Many people think the same as me. It's by a long way the most satisfying keyboard i've ever typed on. It's definitely not louder than scissor MacBook keyboard though, no where near - my girlfriend still has an old MacBook Air and her typing is insanely loud compared to my 2018 MacBook Pro, the 3rd gen is much quieter you can barely hear the keys.
Thankfully it definitely won't be the old scissor mechanism, it's already said they've improved the travel and stability with less wobble and more positive input. As said it's much more likely to be like the Magic Keyboard, probably with even less travel, somewhere in-between that and current Butterfly mechanism.
If they gave me the choice though i'd pick the butterfly to order, i'd take the chance of a keyboard I prefer with less reliability than one that is changed just because of reliability.