I've been here a couple of times and I'm thinking it's better for dinner as they tend to have more staff and thus the service is better.
Lunch service tends to be slow.
The sizzling plates are delicious and my favourite would have to be the beef with curried udon.
As for dessert it's also well presented. I had their brownie with ice cream and green tea syrup to pour on top served on a sizzling plate which was nice ( however be conservative on your syrup pouring as it's quite bitter).