The conversation about a piece of work almost never happens on the work. It happens in a chat app, in an email, in a DM with a screenshot pasted in — three steps removed from the client, the deal, or the document it's actually about. Hub's new comments close that gap. The discussion lives on the record, where the context already is and where the next person will look.
Open a client, a deal, or a document and there's a comment thread right there. Ask the question next to the thing you're asking about. Nobody has to reconstruct what "the file from Tuesday" means, because the comment is attached to the file from Tuesday. When a teammate picks it up next week, the whole thread is sitting where they'd naturally go looking.
@mention a teammate and they're pulled in and notified. Better still, turn any comment into a task with an owner — so "can you double-check this client's address?" stops being a message that scrolls away and becomes a tracked item somebody actually owns. The conversation and the work it creates stay in one place instead of splitting across a chat tool and a separate to-do list.
Every comment that lives in a chat app is context leaking out of your business. Put the conversation on the work and the work keeps its own memory.
Comments and mentions come with the Team seat and up — they're the feature that matters the moment more than one person touches the same workspace. There's nothing to set up: open any record, start a thread, mention whoever needs to see it.