With my latest attempts, I can say that I've been able to conserve only 4% extra worth of battery in a day of usage. No such thing as 50% more battery.
The usual culprits are the screen time, which drains the battery considerably. Even if the device had all radios disabled on a 30mins cycle and enabled for up to 2mins, this made little to no difference in the usage of the battery in a day.
With BetterBatteryStats I was able to conclude that the current app didn't provide any more juice for me to work with. Now if it would have provided say an extra 20% more power that would have been something, but that 4% wasn't enough to sway me.
My own verdict is on the NAY side.