Eger is a charming small city.  It's hard to pinpoint exactly what makes it  so likeable - not everybody is a fan of copf / baroque architecture, there are other Hungarian cities with quaint old-fashioned streets to stroll around, the restaurant and hotel scene is no more than pleasant average, and there is as much indifferent service there as anywhere else, but still visitors find it, as the Germans say, gemutlich.  Partly it may be to do with the history.  Eger has an important place in 16th century resistance to the Turks - the leader of the defence in the famous siege of Eger was Istvan Dobo, a name to conjure with in Hungarian history, and who features largely in Geza Gardonyi's novel "Eclipse of the Crescent Moon", and commemorated by the ruins of the castle.  An apocryphal story asserts that during the siege the defenders kept up their spirits with red wine which stained their beards, leading the Turks to believe that they were drinking bull's blood, hence the name of the drink.  And yes, wine does play a part in Eger's attraction.  In the Szépasszonyivölgy (Valley of Beautiful Women), just outside the centre, there are dozens of winemakers demonstrating their produce with tasting glass at a reasonable price, and by no means just of "Bull's Blood" (bikavér) - Eger's whites are even better.  And then there is the general level of culture; for example, at the summer Castle Festival there is a range of entertainment from early music to belly-dancing.  Even if the town itself does not immediately grab the visitor, it is an excellent centre for exploring the Bukk hills, which are excellent (and demanding) walking country.  Most people rate it as the first stop for those new to Hungary after Budapest.