I had proper 50-50 for five years after divorce and loved it. It made life SO easy! Time for myself, to rebuild, time to rest...., time to go on dates,... , time to travel, time to have noisy sex in an empty, child-free house, time to lounge around and watch tv, to redecorate, to write a book, and time to pour extra energy into my career, without the guilt of knowing the DC we're waiting for dinner etc...
And it made it much easier to put energy and joy into parenting when kids were there - including the hard parts, because you were not totally and utterly exhausted.
It is unbelievably unfair that it is assumed the mother should be resident parent and most of the time does nearly 100%.
My DC are now teens and want to be with me most of the time, and not be shuttling around as much. Fully understand that, but I miss the empty house and being able to act like a free adult!