i've had mine for well over a year, and i love it (used on my 78 pace car). i leave it in the "ramp up" position and park my car on it that way for storage. it was easy to assemble (i did it by myself, although i will suggest having 1 other person to help you. it just makes it a bit easier to handle, etc). a regular 4 post lift was out of the question due to ceiling height (not to mention the additional cost for a good one). it will require a jack lift of 20" and nothing less to get enough clearance to be able to drop the locking rear legs into position. the ramps need to be raised that much to allow the legs to swing into the down locked position. the lift is then lowered approx 1" to settle. i found the product quality to be superior and the customer service great. the nicest thing is if i want to move it (even out into the driveway for some reason), it's possible to do (not that i have, but it is possible). i would recommend it to anyone considering it. it is a very effective way to be able to work under your car safely and conveniently. there is plenty of rool to roll onder the car on a creeper. i have installed an entire exhaust system and worked on my starter/solenoid with ease using it, just as an example.