Easy to install, 10 minutes.
Hardest part was cleaning out the garage to have 12' cleared, 7 hours :-). Screwed supplied bolts into rafters, clipped on the straps w/ provided carabineers, then loaded the boats into the straps
Top boat was a bit awkward for a single person to load. A second set of hands makes it a whole lot easier..
Then figured to use and hold 5 gallon pail to hold the lower boat while I put the straps on. Made it a whole lot easier. Maybe if I try 2 pails I could get the top one loaded easier.. I will load a video of that if it's a tragic fail...... :-)
I will post an update in a year let you know how it survives, good or Bad..