I just installed it (20 'by taking the time to read the user manual). In 15 minutes, I realized the work of a half hours. Before the ax sometimes jammed in the log; A mass was often necessary to press the corner short, this device greatly simplifies the task.
Their advertising "used by your grandmother" is a bit exaggerated because it must still get the weight off vigorously.
An interesting point: the corner for crack spreads enough in the log 2 so that the weight can be used until the end.
I do not know if it will last over time, but its design was very solid.
I recommend this purchase which, for me, is not a gimmick but an indispensable device for splitting logs without wreck.
