K&F Concept is becoming my default brand for premium non-OEM components and accessories. This one met my expectations as well.Good:1. Nicely catalogued and packaged.2. Lightweight by very sturdy body. It will not take much in your camera bag.3. The magnets are very strong and the hinge takes the weight comfortably without slouching.4. Listed for Insta X5 but works almost with everything that can be mounted using 1/4" screw. Tried Insta, S21 Ultra and even my MFT camera.5. Cames with 2 metal plates with 3M tape to fix one non-metallic surfaces.Bad:Nothing really it does what it should plus more (up to your creativity).I tried to test the limits and mounted my camera on it. The hinge could not hold for long (the camera weighs 660 grams), however the magnets didn't' move a bit.I like camera accessories. They really make shooting experience very convenient. Finding compact versatile accessories is an investment. I don't have any primary use for this in my regular photography routine. Still I will keep it in bag (given it's size and weight). I am very sure they will come to a very good use some day and for that reason I would recommend it.