I went here during the week for lunch.
It gets busy with working folks in the area - the draw is the make your own noodles. The vegetables shrink after it is grilled, the way to do it is bring 2 bowls with you otherwise you'll have to line up again.
I'm not big on all you can eat so unless you eat a lot you will get your fill.
Like Neil T said be careful about the sauces some might be too salty or too spicy.