It has been a bit since I completed Herky Jerky and I stated I would write a review, so here it is. We were also doing Geoff's barbell bolt on with the program as well.
Someone on the forum once rated the perceived difficulty of all MKM's programs (BrianCf?) and had Herky Jerky as #2 behind Clean em' Up. My wife, son and I actually did Clean em' Up right before we started Herky Jerky, which was difficult but not impossible, and I assured them that according to SF Herky Jerky would be easier. Lies...all lies. I have done all the higher density programs in MKM and IMHO Herky Jerky was by far the hardest. After the first week my wife and son almost rebelled, but I gave a speech that would have made Patton proud and we managed to complete the program.
Somewhere in Geoff's writings he mentions that the last set of jerks on the hard day is a real challenge, that is an understatement, it takes every ounce of will to get those bells overhead. It got to the point on the 5 set weeks that we actually feared the 15-17 minutes of pain that the hard day brought, I just wanted the bad man to stop.
Anyway, I did not measure anything specifically, but this is what we all noticed of our results.
Myself: Leaner (I am decently lean and did not eat for fat loss, but it happened), Power definitely increased, hypertrophy in traps, shoulders and arms, increased conditioning, increased general sense of well being.
Wife: Leaner, increased power, increased conditioning
Son: Hypertrophy, power increased, conditioning really increased. My son is a wrestler and we did this program right before the season and it did wonders for his wrestling conditioning. So much so that he can routinely win against kids 20+ lbs heavier than him because he can simply outlast them.
Overall Herky Jerky was outstanding and it makes you LOVE/HATE the jerk, but it is well worth it and we will go back to it in the future. My long term goal is to be able to complete it with double 24kg.
Continuing on our clean and jerk journey, we are currently doing the Giant 3.0 with barbell bolt on. That ends this week and then we are going to do a hybrid of KB Strong (2 days) and Pavel's single arm clean and jerk program (2 days), with barbell bolt on added to the KB Strong days.
So far the jerk has definitely delivered and I am excited to see what spending a lot more time with it will do.