I've had some professional exposure to high end articulating borescopes in the aviation industry, and these were typically out of reach (financially speaking) to the average consumer. It amazes me to see many quality offerings now available at affordable price levels. I couldn't pass up the chance to check this one out. Overall, I am really impressed with the quality and functionality of this Kentfaith borescope. It comes packaged in a decent plastic case with a good instruction manual. The scope assembles easily and is very intuitive to use. Control of the articulating camera tip is not the most fluid and controllable I've used in much more expensive machines, but I would rate it very good, and certainly capable of just about anything more expensive units can accomplish. The picture quality and screen image quality are also very good with a generous depth of focus. The quality of the build and materials (e.g. plastic housings, fit, finish) is good and commensurate with my expectations at this price point. I like that the rechargeable battery is accessible and replaceable, if needed. The unit has capability to store images which is very handy for those needing to document findings. The lighting intensity is adjustable for optimal illumination. I tested this with a plumbing project I'm currently working on to inspect a fitting in an extremely tight space and it worked flawlessly. This is a lot of technology at an affordable price, and a real game changer for the pro or DIY mechanic that wants excellent performance without breaking the bank. Highly recommended.