Used mine quite a lot. They are good bags, but not perfect, so I do a few things different to the instructions.
I usually put pipe lagging and knee pads around the fork stanchions.
They also say in the instructions to keep the brake discs on, but I've never had the confidence to do this, so I took them off and they fit nicely into the internal pocket.
Also, I loosen the brake and shift levers slightly and stuff them in jiffy bags as the higher ones seem a bit exposed (I took them off completely one time just to be sure).
After a few uses the plastic pipes that are used to stiffen the wheel compartments have split in a couple of places, which shows they have seen some abuse, so the tyres are always left fully inflated (despite what check-in staff say).
As it weighs next to nothing I also use a fair bit of bubble wrap in the bag, more to hide the helmet and camelbak I have hidden in there than any additional protection it gives.
Enjoy your hols!