At least when using a GoPro (Hero 7 in my case) this thing is majorly flawed in terms of design. GoPro batteries have to be changed a lot so the fact that the gimbal let's you power devices was a huge bonus. Only, when the GoPro is attached the all of the ports are blocked so you can't power a GoPro from the Gimbal.The next issue is how the GoPro mounts. You have to loosen to screws (no screw driver needed at least) to pull off a U shaped bit of plastic and then tighten in down to clamp the GoPro in. This means that every battery change on the GoPro requires loosening the screws and popping the plastic clamp off. It's a hassle when you realize how quickly GoPros go through batteries.In terms of quality, it's a pretty nice unit and does a great job at keeping the horizon nice and straight (we do a lot of Beach videos on our LookIntoHawaii YouTube channel). Only complaint when using it, which is a minor one, is that sometimes the GoPro hits the Gimbal at certain angles (extreme angles to be fair).I just don't understand why they didn't come up with a better clamping system for GoPros...well, I do, it's because they wanted a universal design. Maybe we'll 3D print a better mounting system for it and see if that works better.