Laser sintered inconel muzzle brake promises superior performance

This is interesting. Sintercore is making a 3D printed muzzle device they claim is super duper. Does anyone have $400 to try one out?

•Caliber: 5.56mm/.223
•Threading: 1/2×28 right hand
•Length: 1.75 inches
•Diameter: 0.86 inches
•A2 flash hider external dimensions
•Fits all common AR-15 designs and many other pistols and rifles in 5.56 NATO/.223 Remington with threaded barrels
•Weight: 2.5oz
•Material: Inconel
•Finish: Shot-peened (note: tan and black discoloration after firing is natural)
•Included: Installation instructions, crush washer