Yes, I’ve made SEARCH and TEC and KAIROS retreats.
All of these can be good experiences, very intense, but it is important to keep in mind that they are meant to be JUMPING OFF points to further your faith–not the end all, be all. The weekends are designed with a lot of emotionalism–making you “FEEL” things very passionately, such as recognizing your own sinfulness and inspiring you to go out into the world and do good things, living a better life.
Part of me felt a tad manipulated by these retreats because it is such an emotional roller coaster. There are good things and bad things, but ultimately I’ve never met anyone who said they would rather have NOT made the retreat. I’m in my mid-twenties now, and I still am in touch with people I met on those retreats over ten years ago.
Go for it! Pray that you get what God wants you to learn, out of it.
if you have specific questions about what the weekend is like, i’ll try to answer those as well.