RA Sushi is as sleek and stylish as any South Beach establishment. It serves sake, sushi, and Pacific Rim specialties and delivers a scene that's more stimulating than any other in the hood. The sake list includes a dozen serious imports and saketinis anchored with Ketel One. The 30 types of nigiri sushi ($4 to $5 for two pieces) are seriously good as well, but everything else about RA aims to provide a rah-rah-rah good time. Specialty sushi rolls ($8 to $12), for instance, are probably the wackiest around. Care for a "yellow monkey" with mango, cashews, roasted peppers, artichoke, cream cheese, rice, nori, and kiwi-wasabi sauce? OK, maybe not, but it's there if you change your mind. So are crisply executed starters ($4 to $10) such as pork gyoza, lobster spring rolls, and grilled short ribs with tangy yakiniku sauce. Teriyaki, katsu, and noodle dinners ($12 to $16) are consistently fresh and zesty, and if you haven't yet noticed, prices are preciously reasonable — unlike at those sleek and stylish SoBe joints.