-PRO: Light weight but not sure how strong the lightweight plastic frame is. allows you to put the included silicone GoPro lens cap on the lens. Bad design, but I think they thought it would "protect" the lens somehow. It's not like this. Additionally, the GoPro's right mic is framed, rendering it unusable, resulting in the audio being picked up much quieter. The top microphone is not covered. The DYNAMIC on the underside is also covered. -Biggest minus: you can't "slide" by swiping up/down on the back screen, to navigate to different programs as the plastic case is too "thick" around the edges. This prevents swiping up/down. Biggest issue: Using this case with a mic adapter and a small mic/windscreen and a tilted GoPro mount attached to the bottom is too heavy, causing the entire rig to move. on the adapter, tightened with a knurled screw.