It's not overly comfortable to eat dinner, I find it odd being so high eating. I absolutely love it in the mornings or for sitting having a glass of wine. Personally I love a family meal at a dining table
I can seat 4 at mine but it is the same height as the worktop. It’s circular and sits at one corner of the Islsnd.
What might work for you is a table attached to the island, but at a lower height. I have seen these in magazines or you could look on Houzz. Sitting all in a line wouldn’t work but a rectangular one at right angles or as an island continuation could work if you have a big space. I have also seen ones with built in benches.