I call them quickjoke. They are absolutely ridiculous. I had one, had so many issues and sent it back. I can go on and on about the gauge of the metal, quality of welds, speed and performance of hydraulic units, its a joke.

i have a 4 post lift instead now

Correct but bendpak sells a rolling jack unit that you can use to lift front or rear off the 4 post lift (or you can buy 2 of them and lift both sides).

i have had my lift 2 years and including dropping the transmission, multiple wheel changes, exhaust work, i have had no issues. 4 post lift requires no bolting to the concrete, is rock solid and has multiple safety mechanisms. 1 corner has the capability of holding the entire car’s weight in failure and each corner has a backup. That means 8 distinct locks have the ability to independently hold the weight. Furthermore, to have the 9,000 lbs commercial rating, lift has to be tested almost 3 times of that capacity and it passes various other tests. The cables that hold each corner have a rating of 56,000 lbs each. I can go on and on. 4 post lift is by far the safest and the easiest to operate. All other options have shortcomings:

- 2 post lift requires 4000 psi concrete that is at least 6” thick. No residential garage has this. You could cut squares and repour but the cost is substantial, a lot of work. Even after that 2 post lift isnt as safe as 4 post lift. Is very difficult to make it level on a pitched garage floor and just in general driving the car on 4 post lift and raising it is much easier than having to check the legs of 2 post lift multiple times to ensure if one side is slipping etc. because you cant see the other side of the car as it is being raised.
- mid rise/scissor lift has the biggest issue that it will prevent you from doing things like exhaust/transmission/driveshaft work as majority of them blocks that part of the car
- independent scissor lift is similar to quickjack but much beefier. The problem with this as well as quickjack is they both block the entire side of the car. The only way to get in and out of the car is from the front or back. When you have your traditional residential garage with a 16-20’ depth bay, this becomes a challenge. There is no way for example a creeper will comfortably fit from the front of the car without hitting walls or other obstacles. the other problem with this type of lift is you essentially have 2 independent hydralic ram cylinders which is impossible to synchronize. One side will always be slower and can also fail. Their safety mechanisms arent as good as a 4 post lift either.

I could sit and write a book on this because I spent weeks researching every type of lift from every brand including rotary.

and quickjack is a quickjoke. Jackstands is a way to go and are much safer and dont block entering the car from the side.

one other huge benefit of a 4 post lift is the number of lift points. I have a 8’ ceiling and 90% of other lifts wouldnt have allowed me to raise the car more than 1 lift point. With 4 post lift, I can raise it 4 different heights.