Budapest is spectacular. Unfortunately for now, most of my photos are on my Canon camera and it will have to wait until I arrive back home for me to download. But yes, the city, from the view point of the river, is classic eye candy.I can't wait for your photos from Budapest! I'm going to spend 5 weeks in Hungary, some days in Budapest and after that in Balatonfüred from 1. July, it's my favourite place to chill.
P.S.: Visegrád (Castle) and the curve of Danube is among the most beautiful parts of the river, you will arrive there before Budapest.