Use the appliance for about 1.5 months. I think it is very good she like timber for shorter lengths of beard. One should not think that it replaces a shaver / razor according to my opinion. It trim briefly, but it gets a little stubble left. It is gentle on the skin and it has only slightly irritated the skin on some occasions.
I myself have 4-5mm long medium coarse beard, but shave clean on the neck. With this device, I can travel both the trim and the straight card on the neck as long as I do not require perfection. At home I will continue straight clean with a regular shaver or planer. If you do not shave for a while, it is perfect to quickly trim down, as my shaver does not handle long straws.
I can recommend this product as long as you are aware of its limitations on replacing a traditional shaver / planer.
It should also be clarified that there are two versions that are similar, but where this has a better battery.