opinions on 4 posts will be all over the place. I sold my 2 post lift yrs ago for the convienence of the 4 post. I do this for fun not business so storage is most important to me and the 4 post is much easier. I have had a direct lift 7000 lbs for about 15 yrs now. my wife and daughter helped me assemble it. as far as safety the controls are about 5 ft off the ground and it just plugs into a 110 outlet. biggest things on it have been a 2008 expedition and my 59 chevy wagon. I also have the caster set and moved it once with a car on it. it is not bolted to the floor
