Tampopo serves good ramen (for Arizona). You can see that they make the noodles in-house.
We started with the hirata bun which was good but not great. The bread to filling ratio was too high, and the cold bun wasn't soft and fresh. I had the tonkotsu ramen which came with sprouts, mushrooms, soft boiled egg, and a slice of pork. I added fried chicken or karrage (more like nuggets). The broth was a bit bland. Serving size was generous.
It looks busy from the outside, but just go in and request a seat. They usually can seat you quickly because the communal table is adaptable to adding/removing patrons.