If you just want to shoot footage to watch and relive moments ...go with the silver. If you are into editing and making films ...go with the black. The black has several more resolution options and features that make it more versatile when creating edited content.
The GoPro app is awesome and allows one to instantly view what is on their GoPro without removing the card.
Also, thumbs up for the remote.
The only reason for not getting 5 stars is that when not using app or remote, you still go through the process of " dude ...is it on? dude ...is it in camera mode?" ...etc.
Quality is amazing. For reviews stating otherwise, I would be suspect of a bad unit or an incorrect setting. The quality is really really good.