The Bar/Lounge at Shinagawa Prince Hotel
Shinagawa Prince Hotel Tokyo's bar/lounge is mentioned by experts. Out of 5 professionals tracked on TripExpert, 3 referenced the bar/lounge, such as Frommer's, Fodor's and Star Service.
Shinagawa Prince Hotel 
Frommer's
Fodor's
Star Service
Frommer's "Internet cafe; bar; sports center (various fees charged: ¥1,050 for indoor pool, ¥1,100 for outdoor pool); children's day-care center; (fee: ¥2,000-¥2,500 for 1 hr"
Fodor's "For parents, the Top of Shinagawa Lounge has spectacular views of Tokyo Bay"
Star Service "Walls are barren of artwork, although skyline views often make up for it"
