Great scope in every way.I bought a 2003 Suzuki Grand Vitara in over all good shape to use as little 4x4 for dual sport use. It has very reasonable miles on it. I discovered it was going thru a quart of oil every 200 miles with almost zero leaks. I thought I had been really screwed but hoped it was valve seals. I wanted to check the cylinder walls for excessive wear and scoring before doing anything.I looked at a lot of these scopes and settled on this one for a number of reasons. I liked the side camera. I found that this unit is so good it is not needed. These all have internal batteries which die over a period of years. This unit can be run off a USB-C phone charger or an emergency battery for recharging a phone. That means that as long as the electronics work, it is good to go.It comes in a very professional carrying case and special hooks and stuff to attach to the end of the camera.Excellent light brightness. Excellent video quality. Focal length is from around 3/4 inch to 100 ft or more. Over all picture quality is bright and crisp with great resolution. I could count the factory cross hatch marks on the cylinder walls. Flex Tip. Just over 180 degrees. I was able to look back at the bottoms of the valves. The flex function works very smoothly.The info I gained was worth the money I spent. I could see that I have no burnt valves, piston tops looked good with a thin layer of carbon from the oil and the cylinder walls are in new condition.I decided to try some AT-205 to see if it would soften the valve seals before having them replaced. If that worked, I know the rings are likely good. It did nothing for the first 300 miles. Suddenly after letting it set for a few days, and then starting to use it again, the oil on the dip stick seems to have almost completely stopped dropping. I calculate I am now up to at least 400 miles per quart if not a lot more. There is no more smoke at cold start up or after idling for 5 minutes and taking off in a hurry.