Nobu Hotel WarsawvsMercure Warsaw Grand
Both properties are endorsed by writers. Overall, Hotel Rialto is the choice of most writers compared to Mercure Warsaw Grand. Hotel Rialto ranks #1 in Warsaw with praise from 10 sources such as Oyster, Condé Nast Traveler and Fodor's.
Nobu Hotel Warsaw
 Michelin Guide
 Concierge
 Lonely Planet
 Travel + Leisure
 DK Eyewitness
 Condé Nast Traveler
 Star Service
 The Telegraph
 Oyster
 Fodor's Show All Reviews 
ul Wilcza 73, Warsaw 00-670, Poland
From $101/night
- Bar/Lounge
 - Free Internet
 - Room Service
 - Laundry Service
 - Concierge
 - Laundy Room
 
 "Attractive converted townhouse dating back to 1906. Elegant, sympathetically refurbished interior boasts original art deco and art nouveau features." 
 "Less majestic than the Bristol, but certainly homier." 
 Top Choice
 "Billed as Poland’s first boutique hotel, this converted townhouse is a monument to early-20th-century design and craftsmanship." Full review
 "Hotel Rialto is an ornate masterpiece in the heart of Warsaw." Full review
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Try No. 13, which looks to Africa with its zebra-skin rug and warrior masks.
 "Poland’s original boutique hotel features an Art Deco design and furnishings handpicked from the antiques stores of Paris." 
99.6
 "The Polish capital’s first chic, small hotel, the Rialto has stunning and scrupulously re-created Art Deco decor, right down to the faux-Bakelite light switches." Full review
 "As an emerging player on the city's high-end hotel scene, this boutique option is winning praise from all who cross its path." Full review
8.0
 "This Art Nouveau bolthole offers 44 rooms and apartments in an early 20th-century tenement house in the city centre." Full review
Upscale
 "The property reveals attention to detail in everything from the leaded-glass of its Art Deco entry to its 44 individually decorated guest rooms." Full review
 "Soft jazz plays in the lobby of this boutique hotel, which is completely in tune with its wonderfully consistent and tasteful art deco design, the work of architect Michał Borowski." Full review
Mercure Warsaw Grand
 The Telegraph
ul. Krucza 28, Warsaw 00-522, Poland
From $41/night
- Pet Friendly
 - Bar/Lounge
 - Free Internet
 - Room Service
 - Laundry Service
 - Concierge
 
8.0
 "A Socialist Realism exterior (style of art formed in the Soviet Union) reveals the hotel’s birth in the Fifties when it opened as The Grand, to house visiting governmental dignitaries." Full review