Neil Robinson I highly enjoy the game with three or four. Mainly because there are more tile offerings, but also because there are more people grabbing tiles. This limits your choices when someone else snatches up that castle or ship or field of pigs you wanted/needed. Rounds can become races for those tiles.
I found in the two player game it was possible (and probable? I’ve only played a handful of two player matches) to ignore the other player’s choices and play without worrying about tile scarcity. If you like a tiny bit of cutthroat play in your eurogame, three and four player games are where it’s at. It gave an already heavy-solitary-play game a bit more player interaction, even if it’s just cursing someone for stealing the last mine on the board.