As a frequent traveller for the past 10 years, I have stayed in many 5* hotels (100> in 5 continents). Based on this experience, this one I would rather rate as a top 3* one, or a good 4* hotel.
For €150/night, the room had a very small barhroom, no bathtub and provided few things, e.g. there was no vanity kit offered which is standard in all 5* hotels.
Also the garage rates were exaggerated at €30 per day, compared to the parking rates of the municipality just in front of the hotel and around it.
Further the room felt "packed" as it had for example a big round table in it, which was too much for that little space.
The plus points:
- Very friendly and professional personnel
- Great breakfast buffet with top quality products
- Great restaurant with fantastic views of the town
- Beautiful lobby area
- Great location
Also there was a major renovation going on during my stay. To their honor, I had zero disturbance from it.
Lest best, for business people, I would suggest the Hilton Budapest city as a better located hotel, in the city-centre, with easy access to anything.