The good points first.
The price / performance ratio is good. This gives two devices, thus including two batteries. In addition, several spare evaporator and a charger are included. The tank holds enough fluid in order one day, at least until the evening, get along, the same applies to the battery. In which case each steamer should get there different lengths.
The units are quite small and in very handy, virtually a slightly larger pen.
Now for the negative points.
The steam development is only moderate. This is in the price range, although perfectly normal, but since you can buy in a double pack is available for the price Single combinations with extremely much better steam development. (ELeaf Istick + Nautilus Mini for example).
A battery level indicator is in principle available, but implemented so that you get at some point indicated by the flashing of the button, it would soon end.
I have the number of puffs then never measured, but felt you should quickly seek an outlet. Others can do better, where, for example, at 50% and 20% the color of the LED of the Power button changes.
Nevertheless, I can recommend for beginners the unit straight. It is precisely when one begins with the steaming you have to get used first, and usually one or the other of coughing is inevitable. Since it is certainly not wrong, when the steam is so thick that you can cut it.