The top cap is what made me pull the trigger on it. It was a guaranteed purchase until I saw that it had no additional top cap. Then when they revised it, instant purchase. And I'm really happy to see that it doesn't look or function like it was an afterthought. You'd never guess it wasn't designed to work the way it does, and I love it.
No challenges. Nothing came messed up, no loose 510 pins, no stripped grubnuts, no torn o-rings. No leaks, no dry hits. Easy to wick and easy to build on (this is my first postless deck, and I got it on the first try.)
Only two complaint, as I mentioned earlier, is:
1) The airflow's sound. Wide open it's fine, I guess. But if you sometimes like a semi restricted lung hit, it's going to sound pretty awkward. "Smooth" is the last word I'd use to describe the airflow on this. It's not a deal breaker for me though, everything else is great.
2) The fact that the side airflow holes are drilled straight up and down, not at an angle to hit where your coils are positioned. The block is angled, but the holes are not - honestly, pretty stupid IMO, but it doesn't appear to negatively affect the flavor department (which I thought it would, kind of like the Pharoah's useless top airflow.)