Not quite as good as Tohzan, but a solid second choice. Phx has really been lacking a decent ramen house and this fills the void in the Tempe area.
I had the shoyu ramen which was excellent and reminded me of the more traditional style I'm used to, but my partner had the Republic ramen which was spicy, delicious and of Korean inffluence. We also had the gyoza which were OK, but I thought they would be better. Next time I would opt out of those and maybe try a different side. There were also kim-chi, fried rice and edamame as other options for sides as well as other toppings for the ramen.
I was very pleased with my first visit and can't wait to go again. I do hope they expand and branch out the menu to some other ramen styles and maybe so other sides.
Excellent ramen and good work Republic!