I have had the SW Motech Softbag setup on my '13 for the last five years.
They work well, easy to install, easy to put on and pull off and roomy enough for my needs.
I wouldn't want to rely on them for an extended camping trip but they are great for waterproofs, spare clothing, tool kits, beer, shopping etc'.
They will not accommodate a full face helmet.
The bags are not waterproof. Mine came with waterproof stuff sacks.
The thing I like most about them is that the brackets for the bag supports are unobtrusive so they go unnoticed then the bags are not on the bike.
YMMV.
Ride safe
Chris C