Bought 2 of these alongside two K12's and its definitely worth the money to keep your K12's clean and damage free.
The fit is good with carry handles, and an open slot for the top carry handle. The case has a hard bottom to elevate any damage when you put the bag down. Makes the walk into a venue nice and easy and you can easily carry both in at the same time with the strong handles on these bags.
A good, well designed bag for your investment.