We loved Guo's place because it was perfectly situated for us — NOT in Waikiki but rather in the Kaimuki neighborhood north of Diamond Head. (Very close to Snorkel Bob's, which was great because snorkeling was a big part of our stay on Oahu, and very close to a number of cool restaurants like Rigo and Kaimana Farm Cafe & Deli.) It's clean and well-appointed and served our purposes well. The ambience of the place is no-frills but very functional, with a kitchen that has all the pots and pans and utensils that you might need to cook your basic meals while on vacation.