This is what real pinball is like. That means it is tricky and the tables are unforgiving. The designers have got the weighting of the steel ball just right and it behaves exactly as you would expect it to on a real pinball table. Unfortunately, for many video gamers, that will make it seem annoying. Younger players in particular may be furious to see the ball disappear down the gutter of the table before they managed to flip it.
There are plenty of tables to choose from in Gottlieb Pinball Classics, but the game designers seem to have gone for variety over playability. Of the tables on offer, none has particularly rewarding gameplay of the kind that gets you hooked. To make matters worse, you have limited ability to play some tables without unlocking them first and the principal game mode is 'Gottlieb Challenge', which means you have to beat a specific score on each table to progress to the next one. There is an 'Arcade' mode, but this involves winning credits and it's annoying to have to earn credits just to play your favourite table.
There is a strong emphasis in Gottlieb Pinball Classics on the historical dimension of pinball, which I guess has been overlooked elsewhere, but this is supposed to be a game, not a museum exhibit.