I did it summer 2015 and it was great. We were at PGL Weymouth for the first week, at Caldecotte Xperience for the 2nd week (woo we were the first people allowed in the new yurt village!) and then were helping homeless people for our social action project.
If you make the most of it, it will be the best time of your life. I'm a really antisocial person but I made amazing friends that I'm always meeting up with. Really, it's the people who make it great. Doing PGL as your first week bonds your group so quickly, as although you're strangers you are in high pressure situations and become completely exposed. When you go home the first weekend you miss them so much and you can't wait to start the second week.
I seriously can't recommend NCS enough.