Your experience will depend very much on which Terminal you're at (there is a big difference in age and layouts of individual terminals) and, in particular, whether you're forced to switch terminals when transiting.
A good airport for transiting into Europe, and in my view usually more pleasant than London, Frankfurt or Paris, is Amsterdam Schiphol.
A good airport for transiting into Europe, and in my view usually more pleasant than London, Frankfurt or Paris, is Amsterdam Schiphol.