A little late to the game, but I got the kit in the recent compo and thought I'd share my thoughts.
The mod is superb. Small form factor, nice finish, good build quality, nice firm battery door, great display with lots of options. Upgraded it to V3 firmware in minutes.
However I do not like the Ego Mega tank it comes with.
Poor visibility of the juice level because of the restricted windows.
Not enough airflow, which of course is usage dependent and subjective.
Cannot be broken down for cleaning.
The pre-made heads are tiny with accordingly tiny juice holes. Unworkable with high VG juices. I know there is an RBA section, but it is not included, and I'm not buying one for a tank that has other issues for me.