As I see it:
Advantages: Top fill, variable airflow
Disadvantages: Lowest wattage is too high at 10 watts (although that is probably about right for a 1. 6ohm coil), USB connector, USB connector on bottom, only 1.6 ohm coil available, costs almost as much as the TC40W (which also has USB port on bottom), cigalike battery level indicator.
The 1 watt steps don't bother me - but the range (10 watts to 13.5 watts) is too restricted at both ends.
The TC40W has over double the maH capacity.
To me, it is way overpriced for what you get. With many cigalike starter kits available for under $10, this package should sell for around $20 - not $30.