Looking for a hotel in Frankfurt we found, through the Michelin Red Guide for Germany, the Main Plaza. It is located on the left bank almost across the river from the Dom in Sachsenhausen. We walked everywhere in the old part of town from this hotel.
The Werfen story brought back many pleasant memories. We spent five nights in nearby Bischofshofen in 1995, thoroughly enjoying Eisriesenwelt, Burg Hohenwerfen, Hallein and the salt mine, Salzburg and other nearby accessible places such as Zell am See and St. Johann im Pongau. From the latter we took a pleasant hike of a couple of kilometers to the Liechtenstein Klamm, an interesting narrow chasm carved by a glacial melt stream and accessible by walkway through it. Worth a visit.
Bischofshofen is larger than Werfen, of course, and nothing outstanding as a town although very pleasant and our stay at the small Hotel, Gasthof Schutzenhof, was quite satisfactory and reasonable (address: Alte Bundesstrasse 3, A 5500 Bischofshofen, Austria; tel. 64 62 22 53). Bischofshofen is a rail junction of main lines serving Salzburg, Innsbruck and points in central Austria. I believe it was possible to go direct to Graz from there, for example, and connections to Bad Gastein, etc. were convenient. For rail travelers it is probably a better choice as most IC or through trains do not stop at Werfen, but local trains make the short run from Bischofshofen to Werfen very convenient.
Some Werfen comments: In addition to the steep road, trail and lift to Eisriesenwelt, the steps and paths inside the caves are numerous and fairly steep and visitors should be prepared for a fairly strenuous climbing experience at moderately high altitudes. And it is chilly! Burg Hohenwerfen is a very fine example of castle design and siting and ranks high on our list, but below Burg Eltz, as an outstanding castle.
The falconry demonstration and explanation was excellent and just recalling the swooping birds made the hair on my neck a little nervous.