Sofitel Atrium (ex Hyatt) is yet another 5 star luxury hotel near the Danubeside, featuring about 350 rooms. Inside the atrium is just breathtaking, giving the bar/restaurant/welcoming area downstairs an open air feeling.
It has the full package of services just like the other "5 stars" around.
Focaccia restaurant with fine mediterranean cuisine, beautiful view on the Castle and the Chainbridge, Casino
I've stayed at the Sofitel while I was in Budapest for business.
The hotel is located near the Danube river in the middle of the city center and is in walking distance of the shopping streets and nice bars and restaurants.
I had a room with riverside view and I must say the view is indeed fantastic. The room itself was very spacious: it had a king size bad, a small desk, TV and minibar plus a large bathroom equipped with a bathtub and shower. For the business user there is also (paid) internet access available in the room.
Room service and restaurant are of very high quality and the food is excellent. The bar has a wide range of cocktails and has great design furniture. Very appealing!
The swimming pool and sauna located on the first floor of the hotel are absolutely recommended. Use of these facilities is included in the room rate so give it a try when you're there!