You can see by pricing how when someone wants them gone the price is nice. Take advantage of a great deal then if you decide you don't like them they can be moved along at a reasonable loss. Class d is a whole new realm. Try it and see. however if you can try a meaty A/B design beside it the class d will go away but at a pretty expensive increase.
My experience with blade 1's was super positive sonically however the amps being used really did work hard to get there.