Only the price that can be intimidating. (As such, if you are using a stapler once a decade, consider buying a manual version - it's almost as effective and is less than 20 euros.)
This model has two settings: a button to select the mode or single-tat fashion duo (duo-tac = two staples at a time), and a knob for selecting striking power (depending on the type of wood and number of staples).
The hammer is very effective: first rate side: 30 staples or nails per minute. Side power then: maximum, a staple of 10mm sinks without hesitation in the oak.
Note that the loading of the clips is very easy to do. Also note that no case is supplied with the tool (a shame, I would have gladly paid 10 euros for a briefcase).
PURCHASE OF STAPLES: When purchasing staples, make sure they are of type 53 (type essentially determines the width of the staples). Then choose the length: 6 mm (wood tissues) to 14 mm (wood on wood, metal on wood). When in doubt, 10mm is a good compromise.