Summary: Seasons is a really good expansion for The Sims 2, that adds seasons and new stuff. The new objects are really creative, and adds some special things to The Sims 2. And, we can't forget, the seasons. Changing weather is a really nice feature, but it doesn't change the game that much. Sure, weathers features some enjoyable possibilities, but the point is, it feels the same as the original game. Still, worth it.
Summary: Sure it looks the same, sounds the same, and plays about the same, but it's a whole new world out there, a world where nature reigns supreme and your sims must bow to its forces or suffer the consequences.
Summary: I think that Seasons is the biggest single change in gameplay. Not only does it add awesome graphics, it includes new careers, new life-goals, and a challenging new mode of playing - attempting to keep your SIMS alive living entirely off their own produce.