Large Industrial Size Mosfets

Any thoughts on the large industrial size mosfets used by a few manufacturers such as GamuT in 1 pair per channel to generate 250 wpc into 8 and 450 wpc into 4 ohms. The Gamut amplifiers are very pleasing to the ear and do have a smooth tube like sound, if not the last word in detail. 
Reduced switching distortion potential, not to mention: less time/labor in matching.