There is almost nothing in OO that isn't also available in Neo: and Neo is designed specifically for Mac users. True, you have to wait a month or two for the latest revisions in OO to appear in Neo - for which v3 is already on early release and will be fully available in about six weeks. The reason for the delay is that every new release of OO is inevitably bug-ridden and the worst problems can be ironed out before the corresponding Neo version is released.

But the big bonus of Neo is the amazing responsiveness of the developers: submit a query and you're likely to get a reply - sometimes even a test-patch - the same day. Who else gives you service like that?