I am six feet tall and currently use the device to burn fat.
My size is not a problem, my girlfriend is 1.64 meters and it can also use it perfectly.
No knartzen, no unpleasant noise, all manufactured extraordinary well.
Unfortunately, quite expensive, which will MMN but pay off in some time. The previous model was test winner at Stiftung Warentest.
The construction went smoothly, I manage to even alone. Only the basic module with the flywheel is really hard and probably should be placed in pairs.
On the internet I have often read that's all this tool can be agreed that this is the predecessor. Here only one tube was tapered at which the screws around the hexagon and fasten nuts. But funny thing is that there are two nuts which are too big for this "tool" and the small side of the tube is useless since no screws or nuts are so small. I still need a pipe wrench to hold the screws against the mother and Phillips screwdriver.
But up top!
