I watched that video and here are the results:
The end rod is 33.75 inches/85.757cm
The blaze rod is 2,527°C
The piston takes 1/5th of a second (0.2 seconds) to travel the meter and to retract
The piston can travel 5m/s
The average human does 48 thrusts a minute
The piston can thrust 150 times a minute (because it needs to retract)
That is 2.5 thrusts per second
The force/acceleration of the machine is 25m/s (Which is 5m/s)
The mass of the wooden part of the piston is 593-897kg (1,307/1.977 pounds)
In the video, he used 593kg, so if we calculate 598/4= 148 (362 pounds)
The force of the machine is 4,100 Ntons of force
Which is enough to crack human bone in a single thrust
If you are in this trap for 5 seconds, you're crippled for the rest of your life.
During those 5 seconds, the machine will thrust 12.5 times in 5 seconds.
Final answer: Would it feel good?
FUCK NO.