nightcraw1er.488: None. We have 365 at work and it’s slow, has half the functionality of locally installed office, and spends most of its time trying to connect you to drop box or some other data capture tool. Avoid it totally.
Pick up an old copy (mine is possibly an even older version) I think my one cost £40 or something boxed with all the bits, had to get the code renewed but that was it, been using that for years fine.