What’s nice about the box squat (not the squat to a box), is that it does a really good job developing explosive hip power. When I keep box squats in rotation, I just pop right out of the hole so if I do have a sticking point it’s higher up where I have a real chance of grinding it out.
It’s also a great mobility tool. Many people want to accordion squat and the box squat will help with both the moving the hips back and getting the knees out which are missing in the accordion squat. Just start with the lowest box possible to squat properly and just try to go lower and lower as a progression instead of weight or reps and you’ll build the abililty to display hip drive through a greater range of motion.
They really are easier to recover from. An ME comp. squat will burn me out for a couple weeks. But if I box squat, it’s not nearly as bad. They don’t seem to cause as many issues overall compared to a comp squat, but they can bang up your hips and hip flexors if done too much. Louis Simmons says to use PL briefs or a lose suit for box squats. I find keeping the box just a little higher than parallel helps spare the hips a lot.
I do poorly if all I do is box squat. Now, I at least always include front squats and olympic squats to maintain the ability to stay upright enough and build my legs.
I don’t think I’ve actuallly seen a properly done box squat at any gym I’ve gone to. Make sure you do your homework learning how to do it properly if you’re going to do it at all.