I've done all of Shaun T's insanity workouts, from the original, to asylum, asylum 2, and I even tried out Focus T25. And now that I've done some of Max:30's workouts, I think this is the best thing for all your shaun t workout lovers.
Originally with insanity, i thought it was a brilliant workout. You only needed your body weight. However, the workouts eventually got too long for the normal crowd to enjoy, and I thought its biggest weakness was the lack of emphasis on other parts of your body. Sure you ran and ran and jumped and did push ups until you couldn't see the light anymore, but the workouts ignored many important parts of your body like your back and other smaller muscles. It wasn't exactly a good workout if you wanted structural integrity. I think the overabundance of cardio which was its greatest strength was also its weakness in many ways.
Then, asylum came along and holy *hit I thought it was a perfect balance between strength and cardio. It was a sports training program, but I saw it as a better rounded out insanity workout. There was still a crazy ton of cardio, but it got balanced out with strength exercises, be it with weights or no weights. The best part of asylum was that it focused on building a more structurally sound physique. Many moves were hard not necessarily because of intensity, but more because of focusing on executing the moves in the best form possible. This really helped work out the body as a whole, which was an aspect that was sort of lacking previously. Not to mention the amazing "Back to core" workout which in my opinion is the best core/back workout I've done.
Asylum 2 is similar to asylum, so I won't go into details about it. It's less cardio driven, and good if you're looking to add a little more mass and power, but I don't consider it too different from asylum. The weaknesses of both asylum series are the same, which is still the length of the program. Again, for a lot of people, 50 minute workouts might not be ideal, but both series were already amazing.
Then Focus T25 came out and holy molly it was so different. It was less intense, but more geared for less physically active people. And it brought many strengths to the table. It was only 25 minutes! That was honestly the program's biggest strength. It tried to give you the most effective workout in less time so everyone had time to work out. Another strength is the modifier. In all the insanity series, there wasn't a modifier when the moves got too crazy to handle. But now, T25 gave you a set of moves you could go to if you were too tired, or didn't want to risk hurting your joints on some higher impact moves. When I did T25, I thought to myself: "Wouldn't it be great if an asylum workout could be condensed into only 25 minutes?"
And then Shaun T gives us Max:30 and it incorporates all the strengths of the insanity series plus T25. Max:30 is short, is intense as f**k but still has modifiers so things don't get too crazy if you need to catch a breather, good balance of strength and cardio while also managing to emphasize the whole body. And in only 30 minutes??? Wow lol. Bravo Shaun, you are bananas.
TLDR: Max 30 takes all the strengths of Shaun's previous workouts and combines them into his best work yet.