I have a sealife I bought 6 years ago hardly ever use it. Just a hastle to carry another piece of bulky gear! Borrowed my sons gopro silver 3+ made a mount for my lights goodmen handle do not even notice I am carrying anything extra awesome and easy to use!
Getting the gopro 3+ black for Christmas takes still pics while shooting video. Allso has a auto light dimming adjusted frame rate that should help underwater. There are a few companies making filters for uderwater color correction. Cool Cool Cool!!!