Without knowing your full circumstances of use, it is hard to make recommendations. Two post lifts do have their benefits, but they also are not for all vehicles. Larger, longer, and heavy vehicles are not suited to two post lifts. An example is if you were going to remove the transmission from the car on a two post lift, you have to properly support the vehicle because you will be changing the weigh distribution once the transmission is removed. Two post lifts also require a thicker floor and in some cases, you have to pour special piers under the floor to attach the lift to. Lots of variables to consider. A four post lift is easy and handles most things that a hobbyist will encounter. While not as convenient as a two post lift, you can also do a lot of the service work on them, including transmission removal. Like anything that you own, you have to learn the shortcomings and learn how to work around them. I have seen people change complete rear ends on a 4 post lift by supporting the car forward of the rear with large timbers. Long before there were two post lifts, four post lifts were all that was used. My original four post lift by Weaver was made in the 1940's. It was twice the weight of the current models, and had half the weight lifting capacity......