The Sims 2 Seasons is probably the best expansion pack so far. In this expansion pack, there are many new features and activities such as gardening, fishing, ice skating, roller skating, and of course; your sims now get to experience all four seasons (winter, autumn, spring, summer). Each season lasts for five sim days, and eventually progresses into the next season. The expansion even allows you to design your own climate scheme. Basically, if you want, you can have Spring all year long! (well, all twenty days long). Or you can have spring for two seasons and winter for the other two seasons. There is even a whole new country-themed furniture and kitchen set which blends well with the feel that Seasons gives. I personally don't like the rooster-country wallpaper the expansion offers, but the kitchen sets are very nice.
-Gardening
One of the great things that Seasons offers are the various activities. Gardening is fun, but it's important to keep constant check on them or they can die pretty quickly. The best thing about gardening is the rewards. You can purchase orchard trees (orange, lemon, and apple) and get fruit, or you can create plots and plant vegetables and fruits such as cucumbers, tomatoes (fruit OR vegetable?), pole beans, strawberries, etc. From growing these, you can harvest them and stock them into the Main Squeezer 235X juicer from the catalog. Once you have enough stocked, select the juicer you should be able to mix and match the different produce to make tasty juices. If the produce is "mouthwatering" then the juice will have special effects. To get your produce to be mouthwatering, you have to make sure your plants are thriving. You can improve your garden by adding lawn decorations and even invite the Garden Club over and allow them to judge your garden. And with enough gardening experience you can earn a gold gardening badge.
Magical Juices consist of:
Apple Juice, Beauty Cocktail, Eggplant Juice, Lemonade, Orangeade, Orange Juice, Pureed Boot (yum!), Pepper Punch (no comment), Tomato Juice, Strawberry Lemonade, Strawberry Juice, and Vegetable Cocktail.
It's up to you to figure out what the effects are. As for what the ingredients are, the titles of the juices are pretty self-explanatory for what the juice will consist of.
-Fishing
Wahoo, fishing! Even fishing has it's own good effects. Sims can create ponds in front of their house and fish. Depending on how much experience they have and the badge (bronze, silver, or gold) sims can catch more or less fish. I have to say there isn't a very large variety of fish, but there's just enough. Sims can grill fish for a much more satisfying meal.
-Riverblossom Hills
What could be better than all the features that Seasons offers? A whole new neighborhood!
Riverblossom Hills a new neighborhood that actually kind of focuses on the activities that seasons offers. There are premade families in the neighborhood of course, each with their own story. The first house I entered in Riverblossom Hills was the McGreggor Household. I recommend going into the McGreggor Household first because there is a barn and an orchard, plus there's only one person living in the house, so it'd be easy to familiarize with everything in seasons with overwhelming yourself, although it doesn't really matter.
-PlantSim
In seasons, sims can now become PlantSims. Your sim becomes a plantsim by excessively using pesticides on plants. There is a premade family in Riverblossom Hills with a plantsim (The Greenman Family) if you can't be bothered to create your own PlantSim. To cure a PlantSim, invite one of the members from the Garden Club over and buy a potion. Sims have new aspirations; "Become PlantSim +2,000", "Be Cured of PlantSim +5,000" (examples, I don't know if those are the exact aspiration points)
-Community Lots
In Riverblossom Hills there are new community lots with different activities. Sims can go iceskating during winter and rollerskating during the summer. These also have new aspirations; "Go Ice Skating +500". And I have to say, watching sims fall-- I mean, ice skate is pretty entertaining.
-Outerwear
Of course sims need the appropriate clothes if they want to last through those harsh winters and brutally hot summers! Seasons offers a wide variety of different summer and winter clothes, (coats, snowsuits) even for toddlers! (Toddlers can eat snow, by the way. It actually increases their hunger motive)
-Season Effects
Seasons effect your sims (depending on the season). They may want to see snow or rain or hail (aspiration: See Rain +500). Seasons also have effects on things that your sims do everyday:
Winter is a time to stay at home, drink hot chocolate, and bond with relatives.
Autumn is a time to fast-track a sim's career and skills. Even rake autumn leaves and mess them up all over again!
Summer is a time to relax and increase relationships with friends.
Spring is a time to create a wonderful romance.
So, seasons aren't just pretty, but they have effects on your sims as well!
-Penguin
This is a mild factor of seasons, but during the winter season a penguin actually will visit your sim's home. I was disappointed to know that you couldn't tame the penguin. :P
-Sim Actions
Sims have new actions. During winter you can have snowball fights and during summer you can have water balloon fights. Also during winter you can create devilish snowmen and snowangels.
-Pool
Sim swimming pools used to be pretty limited. But now you can add curved walls to your swimming pools and different wallpapers. Spruce it up a bit and add in a fun swimming slide. Add another sim and have a fun time playing marco polo.
-Leftovers
This has to be one of my favorite things that Seasons offers: LEFTOVERS! I'm sure most of you are tired from making lunches and dinners for seven when you've only got a family of two. But now, leftovers! After your small sim family is done eating, just click on the plate and it will say "Put away Leftovers." and voila! Once leftovers are in the fridge they will not spoil.(Thank goodness!)
Overall, The Sims 2 Seasons is excellent. The graphics and gameplay are wonderful, althought they can be glitchy at some points. The most dramatic and best season of the four is probably Winter, and the I suppose the 'boring' one is probably Summer. So yes, Seasons is well worth your time and money... And your Summer!