I don't really know Frankfurt. I used to go there once a month or so when I was a Betriebsrat (before I started working for myself), and back then the junkies in front of the main station were a regular feature.
Back then in the pre-ICE era, the train ride home took a good 2 hours (as opposed to just 1 today) but it was a lot prettier: Frankfurt to Mainz, then along the Rhine past the Loreley and Kaub with Burg Pfalzgrafenstein, and then Koblenz/Bonn/home. I never worried about a seat reservation either - just headed to the dining car and had a couple of beers. The fact is that what we're experiencing right now is a top-down disaster. -Paul Krugman
The Bingen-Koblenz section of the Rhine is one of the reasons I'd go back. My favorite spot was Burg Stahleck in Bacharach, good view of the valley (and also the Pfalz in the river). *Lunatic*, n. One whose delusions are out of fashion.