Highly recommended by many travel guide books & websites as:
Many Lonely Planet guide books (latest is \'Lonely Planet Southeast Asia, on a shoestring\' 2008 edition)
Vietnam guide book 2007 - 2008 by Petit Futé
Vietnam Guide Book published 2008 by Michelin
Vietnam Handbook The travel guide published 1999 by Footprint Travel Guides
Vietnam Handbook The travel guide published 2002 by Footprint Travel Guides
Vietnam con due capitoli su Laos e Cambogia published 1998 by CLUP guide
Vietnam Travel Yearbook published 2001 by Vietnam National Administration of Tourism
TripAvisor (August 2008 ranked #12 out of 229 hotels in Hanoi)
New Hanoian (ranked #4 out of 212 hotels in Hanoi)
Easy way is by taxi (VND 315,000 or about $15): please be very quick to call a taxi once you finished passport control procedures & get your luggage if your flight arrived so late. Some bad taxi driver may tell that 'Your hotel is full tonight' then take you to other bad hotel to get commission, so please ask the driver take you to exactly address is Especen hotel - 28 Tho Xuong street.
Cheap way is by 15-seat mini bus of Vietnam Airlines ($2/person) to Vietnam Airlines Head Office at No. 1 Quang Trung Street, then walk about 7 minutes to Especen hotel.
Cheapest way is by public bus (no luggage & before 21:00 only): first you get bus No. 7 (yellow & red color) VND 5,000 from Noi Bai airport to Cau Giay, then change into bus No. 9 (VND 3,000) from Cau Giay to Bo Ho (Hoan Kiem lake in Hanoi central), then walk about 5 minutes to Especen hotel. The total costs for both bus trips would be VND 8,000 (or 50 US cents). Please be careful to avoid pickpocket.
We also supply airport pickup service for $15 for a 4 seats car, $16 for a 7 seats car or $25 for a 16 seats car. If you like it, please give me the detail of your flight. Highly recommended if you arrival so late.