I like that you can set up your own rules for who gets to work from home or what hours they are allowed in their office space (if any).
It's not great if there is no one using it at all times of day - so make sure people know about this! If someone wants flexible working options then WF does provide them with those opportunities but also has some limitations around how much flexibility these actually give out as well. We use workforce when we have staff off sick / holiday etc where an alternative would be difficult/impossible otherwise i guess?