I love the three-giant engines suspended on a frame above the fuselage. By tilting them slightly upward, mounted with the front a bit higher than the back, the natural lift from the thrust of those engines will maximize the efficient usage of the fuel consumed, and require a less-dense molecular air-lift to maintain flight. I’ll bet those babies can cruise at 40-50,000 ft no problem. Maybe higher.
I truly believe that style will be the future.
The only downside I see if the lack of window seats. I don’t fly anymore since 9/11 and was always super aware when I did and always wanted a window seat. These will be spam in a can style, but I suppose many don’t care. The lifting body will eventually prove itself, might take another 20-30 years or more though.