This is my 6th Decksaver. They all have been easy to use and very solid. This one is the same: robust and a great fit.
I already own a Decksaver for a Roland boutique unit, but it only works when the synth is not attached to the K-25M keyboard. With this larger Decksaver, I can leave the Boutique connected and cover the whole thing.
I guess the only con is that I need to flatten the synth to fit the cover, but that's not too annoying.
All in all, I recommend this product.