Boat from Vienna to Budapest

I'm going to be using the hydrofoil when I travel from Vienna to Budapest. I went through www.budapesthotels.com. There should be a link somewhere on the website for the hydrofoil. If you can to go to Vienna to Budapest, it's about 92 euros one way and takes about 5 hours. A bit long, but I'm hoping the views will be great. It leaves Vienna at 9AM and gets into Budapest around 2:30, but that may change depending on when you're traveling. You can buy your tickets online and they'll send you the tickets via email. Hope that helps.

How did the hydrofoil trip go? Would you recommend? Any recommendations about Vienna or Budapest? Did you see Boy's Choir and Spanish Riding School?

Thanks