I have a tech channel and am new to creating product reviews. This cart is an upgrade for my filmmaking. Now I can take much more interesting shots with great stability, angles and transitions. My next update will be the straight slider. Pros: - Relatively easy to use. Adjusting the direction of the wheels can be a bit tricky as they are too loose when they are loose and the knobs to tighten are at the bottom. You'll get the hang of it with a little practice. - The sled is very stable as long as your surface is smooth. - It has 3 screw holes for you to fix the camera in the middle and handles on both ends for easy control - Feels strong and durable. Cons: - As I mentioned, adjusting the direction of the wheels can be a bit tricky. This requires a little training. Although the wheels are very smooth and well lubricated, they do a good job of conveying surface imperfections in the captured video. No problem if the surface on which you push the trolley is as smooth as possible. Excellent value for money and quality. If you're taking product shots, YOU NEED THIS.