We're going for the 1st time in October.
But we've been to Bluezoo.
A stunning, beautiful restaurant.
And the food is terrific, especially if you like seafood.
If you go to Bluezoo, get there a little early, enjoy a cocktail at the bar to soak in the fabulous atmosphere.
I've heard great things about Jiko, but have no experience dining there.
Either way, I think you'll be just fine. My GUESS is Bluezoo is a bit more romantic.