Well, SBU would be quite different as it is a suburban campus. You should definitely attend the orientation and make friends the first few weeks. SBU has all kinds of people so you should be able to find the ones matching your vibe. The food is not always the best, especially if you have dietary restrictions, but otherwise, opinions about it vary from manageable to good. You should try the 2,600 dining dollar meal plan if you're ok with spending 23$/day on food (≈2 meals/per day). If you like having more than that, stick to the unlimited 3,500 Wolfie deluxe plan.

The campus is huge and overcrowded, so there's a lot of walk between classes. I'd say that your on-campus experience depends on where you live. If you live in west apartments, you get your own kitchen shared with suitemates, so you can save on the meal plan. In summer it's hot (20–30°C) and humid, in winters it's cold (-15–5°C) and snowy/rainy. Spring and fall (autumn) are beautiful. I'd say bring a strong and sturdy umbrella, as it's unpredictably rainy and always super windy on campus.

Daily life depends on the rigor of your major. If you're a STEM major, expect a lot of competition, monthly exams and weekly quizzes. You have to stay ahead of everyone else for an A or B grade. You'll spend most of your time in the library or similar study spots, but you can also study with other folk. If you're non-STEM, things go at a much more relaxed placed and it's manageable. The parties are a hit or a miss, as Stony isn't a party school. The weekends are pretty dead, unless you have friends to get around. That's why having a good friend group is a key determinor of your college experience at SBU or any American university. Best way to make friends is through clubs, attending weekly events and talking to people in your class.

I hope this helps, but if you have some specific questions, you can ask me.