This is the low-rent "lift" I used when I took the engine out of my 911. I don't recommend it.
I installed a MaxJax when I built a new garage. The ceilings are 10 feet, which lets me run the car up all the way. It only goes up 4 feet which is too low to stand under., but just right when working on brakes. For under the car work I run it up about 2 feet and use a creeper. I like the MaxJax a lot, although the left hand hydraulic cylinder keeps getting air in it. I DO NOT leave a car up on it overnight.
Putting the engine back in was MUCH easier with the MaxJax