I grew up around them, pop, uncles, and friends of the family all had them. Most used the same or very close to the same loads, so if someone happened to have forgot theirs or ran out during a hunt, there was generally always something readily available.
Myself, being somewhat forced to shoot them in my younger years, found other things to my likings. I hunted with my first rifle a Win. 70 in 243 through high school and into my early 20's. I then purchased a used '06, then a 25-06 after selling the former. I have to admit, I wished I had kept it as it was the most accurate factory rifle in that caliber I have ever shot. Being that as it was, I already had three of them sitting in the safe, handed down from my pop.
The thing about them is that you can load them from basic gallery loads up to darn near magnum loads with the available powders on the shelves today. With the vast range of weights, and types of bullets, your set to hunt most anything.
A couple years ago, I pulled out pop's old sporterized 03A3 and gave it a good scrubbing. For the most part of 30 years it had only shot late 50's ball ammo, which he simply pulled the FMJ, and replaced with a Sierra 150gr spitzer. He never got overly concerned with clover leaf groups, but with that load and his rifle, one didn't bet he couldn't hit anything you challenged him with. After cleaning the tube for what seemed an eternity, I finially got clean patches. Having some loads I developed for a friend and an nephew on hand, I slipped off to the range and shot one of my best five shot groups ever. Never say an old dog can't hunt.
I agree that it might not be good for everything, but for someone who wanted only one rifle to cover most criteria out to easily 400yds, I agree, it is hard to beat.