In my experience the biggest issue with homework beforehand is that a substantial portion of the attendees won't do the homework. Frequently it's the people who you most needed to have done the homework. Now you need to rehash it for them anyways and everyone who did the homework has their time wasted. That's one area where the Amazon Silent Read shines. The other way I found it very useful is that people leave comments on the areas that need discussion and now you can spend the rest of the meeting just on those points. Would be great to have left the notes before the meeting but that's where reality sabotages things.

I’ve admired meeting stewards who will adjourn the meeting if people aren’t prepared and reconvene it later. If that person has authority and is well respected, it only has to happen once or twice, but obviously it can’t be applied everywhere.