I have purchase age appropriate NIV Study Bibles for my girls since they were very young. They requested Teen Study Bibles for Christmas as they knew the added content (study guides and devotionals) would be specific to this time in their life. It helps direct them to the right place in God's Word for the answers they are looking for.
I am a youth group and Sunday school founder, coordinator, teacher and leader and I bought 25 or so of these for my teens (ages 12-18) and they love it. I gave them each one to take home and bring to and from church. When they were younger, they liked them because they looked cool and were easy to read compared to other translations, but not paraphrased or anything so it loses meaning. Now that they are older, they really appreciate the testimonies and easy to use 'subject finder'. It really is an excellent tool for teens of all ages. I use one most of the time because I like to see the scripture with the exact words they do. I even enjoy using it. I would highly recommend this for teens of any age.