I have a floor jack in my trunk and takes up a lot of space, where if I had a flat, I want to change it quick. However, a friend told me about this electric jack, really good specs, and worked great for him, so decided to give it a try. I was not dissappointed, the jack saved me, big time, right when I needed it the most. First off, the jack comes in a case and not a bad size either and fits half the size of my other one, and to the back of my trunk to. The other thing is, I tried it out the next day where I had a flat on the highway and wow, was it a busy one. For first hand, this jack does the job, and not a bad speed either. The part that came in just as handy was that electric impact wrench that just wizzed those lug nuts off. I have to say, the whole taking the old tire off and putting a new one on, took me about six minutes. And that was well worth the money spent. It also has an air compressor which also came in handy because my spare was low as well. So the device did the whole job, did it reasonably quick and had me going on down the road, with little down time, in my book. Hard to show how nice this one is with just pics, so I did a video to show. No cons, worked great for me, where I am very happy with the purchase.