We were a party of four and had our own table, and we saw a party of two had their own table nearby. We'd requested and were able to sit near all the action (by the firepit).
I'm glad to hear this, as DH and I are going to Ohana without the kids and it will be nice to have our own little table. It isn't exactly romantic, but anytime we can get away on our own at WDW to eat - we make the best of it!