Definitely a spacer saver or yard saver... I installed it on the side of my house. 
Before buying/building it be aware of: 
1. There is a LOT of screws, but if you follow the directions as printed and have a power screwdriver it can be done. It took me 2 nights and about 4-5 hours to finish it. You will need assistance in some occasions in order to hold some parts but I mostly did it by myself.
2. You will need to build a base to install it on (wood or preferably cement)
3. FOLLOW THE INSTRUCTIONS AND YOU WILL BE FINE!!!
I highly recommend that you buy the anchor kit - Arrow PN AK100 (sold separately). The shed is not super heavy. I live in Florida and if you have high winds concerns it is a must. It also works well at anchoring down your shed in a certain position in order for you to better weatherproof it.