Very useful as long as you have a garage that is big enough for an SL to fit with lots of room around it and you have a beam that you trust to hang the hoist
Have been advised that although the hoists r in general good - and save a lot of worry - you have to be careful which one you choose especially if you intend storing it on the hoist. I would still store it on the rack personally. Have seen different ones advertised in the back of merc mags etc.
For storage I have a brand new unused hard top bag up for grabs. It slides over the har dtop & then then you hang it on the (garage/ house/shed ) wall out of the way - .
I have one of those padded bags, don't have anywhere to hang it but it's great protection for the hardtop when it's on the trolley or being moved around.
The Auto-Pak bag is what I have, but I've not used it for hanging the hard top on the wall ... just general protection and keeping the dust off when it's on the trolley.