I think alot of it could be modified to do at home, but for the 6 of us, someone at somepoint was doing the program,we needed the heavy gym equipment.
I dreaded it because the HIIT was excessively severe in length - up to 30 minutes, and there's debate if taking your hr to 90-100 is even that beneficial, when 60-85 percent will do....it just was over the top, and spartan..of COURSE you would get results...but VERY hard to maintain it for 4months....and no one went on to do the program again...I'm at the age where life is too short to dread working out!Now, in my 30's I might've really gotten into it...
The diet - well, all that animal food, is for me, not healthy...I have been in medicine too long...that old "has to grow from the ground or have a mother" when grains are not evil, is just foolish to me....whole grains,legumes,etc, in portion control, don't hamper weight loss (though I admit, they will hold on to some water that makes the scale edge up)..I found - and again this is just me, that the diet was improbable for most people to keep up....and thats knowing hundreds over the years in fitness and gyms....
Skwigg gave it a rave, but admitted the dread factor on her blog, and truly, for hating your workouts for 4 months, although she got results, her results from her other challenges that were friendlier were no worse!