It's well build, the locking mechanism is the best I have used. Because it is so sturdy, it's also (too) heavy to use.
I dont use it to saw (but that works too), but to set ropes in trees. Best way is to screw it together as you go, always adding a part at the bottom while keeping the pole upright.
I would prefer pieces of 1,6 meter so it's lesser pieces (and lesser weight). Of course pieces of 1 meter are easy to stow away and carry.