I've mediated for ten years.
My grandma started practicing zen meditation in the 1950s, when it first was introduced to the US. She taught my mom, who's now a teacher, and introduced me to the practice when I was sixteen.
Meditation, I find, confers a number of benefits. It's energizing and relaxing. It improves my sleep. It hones my listening and observation skills. It makes me more aware of the thoughts in my head -- which can be deafening at times -- and will help me quiet them.
I find that the time and effort I spend meditating is tremendously valuable and enriching.