Thought I'd share some thoughts on my Quick Jack that I plan to use with my 996 GT3 ('11 E550 coupe and '14 Subaru Forester).
http://www.pelicanparts.com/catalog/shopcart/TOOL/POR_TOOL_BNDpak_pg2.htm
After working at a shop with lifts, crawling under a vehicle on floor jacks wasn't as attractive as it used to be. A bad back also didn't help. Unfortunately, my garage ceiling height was not enough for a regular left. So I started looking at portable lifts and settled on the Quick Jack BL-5000SLX.
The two units fit nicely under my stock height GT3 and, using the 3" rubber blocks (included along with 2' blocks) raises the car approximately 20". This is a good height to do brake work, oil changes plus the upcoming 60K service *plugs, serpentine belt...). It also enables me to lay on my creeper. The 3" collapsed height also makes it possible to store under the car with about 2" clearance. It comes with sets of 4 3" and 2" rubber blocks as well as a couple of racks to position the lifts along the side of the vehicle. There are short hoses attached to the lefts and longer hoses that go between the short hose and the pump unit.
The units arrived in 3 boxes - one each for the lift units and hydraulic and another with the pump unit. "Some assembly required" entailed attaching the quick connects onto the pump and hoses, filling the pump reservoir with 2.5qts of ATF, filling the air cartridges and purging the hydraulic cylinders. The owners manual could be improved (like what size wrenches and better grammar/organization) but the 800# support was quick and very good.
I am impressed with how easy they are to set-up and use. Here are some pic of the unit under my GT3:
