The last company I worked at did an "all-hands" meeting every day, for 9 minutes just before lunch. It actually worked incredibly well - 9 minutes out of every day is nothing, comparatively speaking, and the insanely compressed format puts pressure on everyone to not waste time with anything. It scaled really well from 20 - 150 people. It was great for hiring too - we could bring candidates in and give them a quick 9 minute overview of what was happening around the company and what the culture was like.

A couple of things that I think differentiate good all-hands from bad ones (daily or otherwise)

- As much as possible, rank-and-file employees should drive the show. Having management up there talking the whole time increases the mandatory boring meeting feeling.

- If you're running all hands, your number one priority is to eliminate any feeling of big company corporate "rah-rah" culture. It's really easy for all-hands to feel fake with lots of imposed cheery "culture" things (someone else in the comments mentioned a singalong.. Really? It's cool to have unique things that you guys as a company do, but they have to be organic. Coming up with them as a manager basically guarantees that everyone laughs at them behind your back.

- Your priority should be providing useful information to employees, not pushing things on them. If the all-hands becomes the "yell about sales targets" meeting everyone will hate them.