Probably late to say this now, but I've eaten at Via Napoli, Tutto Italia, Kona, and Teppan Edo.
Out of the four, I like Via Napoli the most. Because it's pizza. And who doesn't love pizza? If you're from somewhere that does great pizza, then you might find it a bit meh (I've heard people say that). But I don't, so it's awesome for me.
I didn't really like Tutto Italia. It was really posh, and they didn't really do much food that I liked (I ended up with chicken topped with cheese and tomato. It was OK, I guess).
We went to Kona Cafe for breakfast, which I'm assuming you're not doing. I liked it, but everyone else in the family didn't. I would like to do it for lunch/dinner, but the same reason. I think only my mum wants to do it as well.
Teppan Edo was good. It's fun to watch the food being cooked (you get an onion volcano. That's really awesome). The food itself was nice as well.