Just make sure the clutch isn't slipping. The dual mass flywheels are expensive to replace. I converted mine to single mass. Not as good but still very drivable.
Good luck. It is not easy to find a well preserved car. I have a first generation Skoda Fabia with the same engine and I was looking for it for about half a year before I bought it (here in CZ this car is still very demanded but supply is lower and lower). You are 100% right that acceleration is good even nowadays. In 3rd gear, the car can outrun even much more modern cars (mainly SUVs with small engines). But I recommend filling up with diesel with a higher cetane number because of the injectors.
