Brookings is a nice city to live in if you don't mind living a little far away from another city. I liked living in Brookings, but it didn't have enough opportunities to warrant me living there longer. You won't find many great jobs here, and there isn't much in terms of higher education aside from the South Dakota State University campus.
McCrory Gardens is a nice public park to visit if you enjoy being outside. In my opinion, it's the best area in Brookings. The city has an alright selection of stores and restaurants, but you'll have to drive elsewhere if you're looking for a mall or an upscale restaurant.
Buying a home here is reasonably affordable. It's not the best city for people looking to start a career, but if you are at the point in your life when you want to settle down in a quiet city, then Brookings might be a good choice for you.