Forty eight cards, four players, and one thing that makes it unlike every other trick taking game: you do not know who your partner is. Whoever holds the two queens of clubs is on one side and everybody else is on the other, and working out which is which from the way people play is most of the game.
It deals you in immediately and explains as it goes, which matters, because the scoring has opinions and the announcements have more. Play a few hands and the fog clears: you learn to read a lead, to sit on a trump, and to work out from one discard that the player to your left has been on your team since the deal. Sessions run long. That is the game, not a flaw in it.