What it isn't great for is content. There's never anything remotely useful there, the whole feed is a weird corporate version of the self help section in a bookshop. A lot of stuff is written purely to get attention.
But I also don't see the tradeoff in as poor a light as say FB. What's so personal about where you work? If people can see what I've done they can offer relevant services, mainly they can try to recruit me.