We do both 747 freighters and combi's. Both have their charms.
Returned last week from PVG, our crew brought 2 bicycles, flash lights, DVD's, clothes, infant seat, etc... This also happens on PAX flights, but is obviously easier with cargo-only flights although we cannot check in any of the stuff like with pax flghts, but have to carry everything ourselves.
Agree with the better off-peak times. Food is for us the same. Though I have a good time, I miss the lovely ladies after a while.
Training is the same.
Ciao,