Results are variable and depend on more than peri-workout nutrition.
You can have good peri-workout nutrition, a shitty program, shitty sleep, and shitty genetics.
You can have no peri-workout nutrition, an OK program, OK sleep, and OK genetics.
You can have good peri-workout nutrition, a shit program, a crappy diet, excellent sleep, and great genetics.
How are we supposed to answer this so simply.
It also depends on how long you've gone without eating up until working out. If you wait 3 hours to work out, you might benefit from peri-workout nutrition. If you just ate an hour ago, there might be no need for mid-workout nutrition considering that a decent sized meal takes 4 hours to digest.
If you don't like the idea, don't do it.