My thoughts on scissors lifts (ie. the Atlas, Nussbaum, Ever-Eternal, Maha, Bend Pak, etc.) are mixed. This style of lift has been around in Europe for YEARS (at least as far back as the 1980's) and have never been very popular with the professional garages here in the USA. BMW of N. America has recently required that every BMW facility install one and they recommend the Nussbaum version. The dealers we have installed them for HATE them (with a passion, thus the capitalization). The major problem is that the lift sits approximately 5" off the ground when it is installed flat on the floor. 5" is no problem if you are only picking up SUV's, but it is MUCH too high if you have lower profile cars. The answer, of course, is to recess the lift. In recessing, you lose that extra 5" in height that makes the lift so attractive in the first place! For a home uses situation, like most have here, they should be fine, but keep in mind the recessed floor aspect.
On a related topic, virtually all inground lifts that are manufactured today are designed with a plastic containment for environmental protection and high pressure cylinders that use very little hydraulic (ATF) oil. To the best of my knowledge, there isn't anywhere in the USA that has "outlawed" ANY type of hydraulic lift, old style or new style. The EPA doesn't regulate anything under 100 gallons of oil and even the old style lifts only used about 50 gallon. The clean up issue is related to people and businesses that didn't fix or replace their lifts when they started leaking. Their solution to a leaking lift was to continue dumping oil into it! (I've had customers tell me they dump their used motor oil in the lift when it starts hopping...I have a municipality that keeps a 55-gallon drum of oil next to their lift and they change out the drum on a weekly basis..Talk about knuckleheads!) If you have questions on ingrounds, feel free to give me a call!
Frank
www.standardus.com