I have had the Tsunami in hand for about a month now. It is hands down my current favorite RDA to date.
The velocity style posts are as easy to build on as they come....and have rock solid connection....great for TC builds. Plenty of room for larger coils for those who still use Ni and need the space. Kennedy style airflow....nuff said. And the drip well is quite large...If filled carefully, I can do around 20 drops with no leaking.
Flavor production slightly edges out the Dark Horse (my prior favorite).
It is well machined, all parts fit together smoothly but tight....airflow adjustment stays where you set it, but isn't difficult to set.
when recieved, it came clean...zero machine oil residue. At the moment, I would say it is simply the best RDA in its price range.
Here is a video on it: