I’m giving this set 5-stars for what it is — as nice silicon skeleton that covers the GoPro 13 and provides an extra layer of shock protection, plus 3 full sets of glass covers that protect the lens and the front and rear screens.The screen protectors come with cleaning cloths, a pair of sticky dust removers and sticker strips to help position the glass elements before you press the pieces into place. Just like with a phone screen covers, this takes some prep and care to avoid trapping dust and fingerprints between the glass elements. But the kit comes with everything you need to perform a successful install.The silicon skeleton then slips over the camera. In use (see accompanying video), the cover is not super snug and you can feel it moving around a bit (especially on the right side) on the camera. But it is not floppy and over time you’ll want to remove it for cleaning dust and dirt that gets trapped between the sleeve and the camera. Soaking the sleeve in little water and dish soap, then letting it air dry cleans it right up.My favorite element to this kit is the silicon lens cap that fits on the sleeve (it does fit the lens without the cover). The cap includes a small retainer string, which I set up so the clip can be removed from the camera sleeve so I can quickly take it all the way off the camera so it isn’t flopping around in windy conditions or where you might be frequently switching the orientation of the camera.The kit comes with two items I likely won’t use much. One is the wrist strap. It’s meant to attach to one of the 2 holes in top left corner of the sleeve. Personally, I don’t need a strap and it can just get in the way of the lens, adding one more dangling item to swing into your video at the wrong second. But it’s a decent strap with an adjustable piece to secure it to your wrist, so I may use it elsewhere. It would be prefect for a self-stick or floating attachment.The other item is a replacement battery door that has a hinged rubber opening for a charging cable. This lacks the spring closing mechanism of the factory door and my strong opinion is that it is not waterproof. But it does has have an interior rubber seal and the battery door pushes into place to “seal” closed. Without testing it, I would say that it’s probably sealing out rain or mist, but I would not swim or dive with it. What it does look like a great solution for is when doing night-time time-lapse videos or photography where the camera needs to be hooked up to a battery source. In that use with the OEM door, the door has to be left entirely open and exposed the full battery and memory card compartments. Using this optional door, the battery and memory card remain covered, and only the power cord socket is open. For this use, or if you NEVER film underwater or in heavy rain, and you just want to be able to quickly attach the charge cable, the accessory door should be perfect.