Yes, walked for a while at the end then stretched in the back garden for 10 whilst trying not to collapse into a heap.
You won’t be impressed with the HIIT, just been doing Joe Wicks 20 minute YouTube videos before breakfast. To go from doing nothing at all for a couple of years it has been ideal, so got to take my hat of to him although many think he’s a ponce.
Biggest benefit I found is that it fits with a busy family/work life. Struggled to maintain a routine of going to the gym - felt like there was always obstacles in the way. Gets me out of bed and sets my head straight before work. I have used exercise a lot over the years to deal with state of mind, and this has definitely helped on that score.
His diet/recipes are pretty good, if a bit complicated for a poor cook like me, but I applied the principle of high protein/Low carb and plenty of veg.