Traded in a 16 6.7 on this 20 7.3, but have other gas vehicles. Mostly never needed to wait for the glow plugs unless well below freezing, so has not been an issue for me.
I have gone back and forth having a 2001 7.3 diesel, 2005 6.0 diesel, then a 2012 Raptor, 2016 6.7 diesel and now the 2020 7.3 gas. There were things I liked about all of them, but for the last so far getting about 2 mpg less with the gas, but gas is much less expensive than diesel, and maintenance will be much less, so should be further ahead. I have not hooked a heavy trailer on it yet, so may be slight difference, but with 4.30 gears should offset.