Ok here are some first impressions:
The build quality and external finish (anodised aluminium) are excellent. The door fits snugly and has zero gaps or movement. In fact, when I cover the air intake with my thumb and take a puff, there is no air sneaking around the outside at all. Pretty much a vacuum.
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The main flaw on mine is on the inside - a manufacturing mark of some sort on the aluminium around the edges of the screen. Maybe it has something to do with the anodising process - it doesn't look like regular machining marks. It doesn't bother me personally but some people might be annoyed by it. Slipped through in the first-run QC rush maybe.
You can see it in this photo (the lighter parts of the "swirl" are little ridges catching the light. There are no scratched or silver bits):
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Here's the other side:
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And the top:
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The two main benefits of this design over the BB are the super smooth af (maybe the honeycomb holes?)
and the fact that the chipset is on the same horizontal plane as the boro.
Leaking from RBA's onto the positive pin of BBs and down into the electronics has caused many a problem - and yes even DNA's can blow from this.
With the Delro this can't happen. Any leaks that got through the pos pin would end up in the battery cavity. I guess this could cause issues but much less likely to do damage than juice on a SEVO or DNA board.
I'm not a hundred percent convinced of SXK's claim of 2200mAh battery life but need to do more testing to have a better idea.
Bottom line is I love it so far! As soon as the planets align I'll be buying a DNA version.
If anyone's interested in size comparisons with the Abyss, Billet Box and Boxx, let me know and I'll post (more

) photos.