Well, it all hinges on the relative worth of learning how to perform these exercises, and that really can only be decided by you.
The size and strength benefits will come with heavier weight. But heavier weight will only be possible with good technique, so... back to the relative worth question.
As for including them in a routine, yes they absolutely can be integrated. Spartigus is one member who trains in these lifts regularly, in addition to conventional bench, deads and squats.
And they are fun, for sure. The lighter the weight, the more of a cardio focus these lifts have - from my limited perspective, at least (think Crossfit). Clean presses and snatches etc are great exercises for building muscle and power.
But again, if you're not committed to learning proper form, it's a fool's endeavour.
W.A. AMATEUR STRONGMAN
Axle clean-press: 100 kgs (220 lbs)
Bench press: 135 kgs (298 lbs) - 1st PL meet 16th October 2011
Deadlift w/Barbell: 180 kgs (397 lbs)
Deadlift w/Hexbar: 225 kgs (496 lbs)
Farmers walk: 240 kgs (530 lbs), 50 feet
Front squat: 100 kgs (220 lbs)
Log clean-press: 100 kgs (220 lbs)
Strict OHP: 85 kgs (187 lbs) 3 reps
Tyre flip: 260 kgs (573 lbs), 100 feet
Last edited by Abaddon; 09-26-2011 at 07:41 AM.