I've heard good comments about both Kiwami Ramen in the Waikiki Shopping Plaza and Rai Rai Ramen on Kapahulu Avenue. Both are apparently popular with Japanese visitors so should be quite authentic in flavor. Kiwami appears to serve traditional ramen while Rai Rai specializes in Hakata style tonkotsu ramen. I was wondering if anyone has eaten at either place and what your impression was. Thanks in advance for your help.