I love these guys' onigiris - they have a very unique taste and whenever I'm in Botany I get a chicken one. I like their sushi pieces as well but am more likely to grab a few onigiris just because I like them so much. I've never ordered anything else from them but would highly recommend just grabbing one if you're walking past as a good snack/easy lunch.
I've recently tried their teriyaki chicken ramen (I love the fact that they do hot meals as well as sushi), and I have to say that it was delicious. It was really good value too, considering the amount of chicken that they gave me. The broth was really delicious too. From the looks of it, I wouldn't recommend the vege ramen (the main veg was lettuce on top), but I didn't have that, so don't necessarily take my word for it. I love their onigiri too.