I know for myself I'm a huge fan of these. Short 30min workouts usually consisting of mobility movements, ultra high rep (30+ reps each set) movements to pump blood into connective tissues etc.
These are really handy in keeping your body going through workouts week in and week out.
I find I recover better and suffer less little nagging injuries throughout the training cycle.
Only problem I sometimes have is finding the time to get them in or that I neglect them until something does crop up lol.
What do you guys think of recovery type workouts? how do you utilize them and what do you do?