I have stayed at Danubius chain in Budapest before, Helia which is a spa hotel. This is more of a business location being beside the Puskas Arena and the M2 subway line and the 1 Tram line which gives multiple transit options if not using a hire vehicle or taxi. Breakfast was very decent, service attentive and professional. The room was clean with a few minor issues ie bathtub not draining quickly, furniture showing age (I understand so not an issue) and the facilities very good for my purpose - large gym with all required equipment, smaller pool but still permitted laps and a sauna all of which I used each day. As my last day had me leaving before breakfast, I was provided with a takeaway bag. All much appreciated. Front desk very helpful and kind. I enjoyed my stay very much.
The place is beautiful, the atmosphere is very cozy and welcoming. The location is not close to public transport, but it is easy to call a car via app to the train station and soon be in the center of Budapest. The only bad thing is the breakfast. The breads are not fresh and there is little variety of fruits. They need to improve the breakfast.
Location is fine, you can ask the stuff to drive u to the hotel from the airport. But the train station is 1.3km away, and for some reason it's far more painful to walk through compared to normal 1.3km road. Other then that, everything is fine, price is ok, room is good and clean, service is good. I didn't eat the breakfast tho