I got it today, and have some quick impressions. In short, it's a Nautilus 2, but with the new topfill method. So if anyone liked that tank, but hated unscrewing it every time to refill, I think you'll be happy. I honestly can't tell any difference in performance. I guess that's a good improvement, hence the S, like an apple phone slight upgrade.
Some detailed thoughts:
-No leaking, so far, but too early to tell if that will carry over.
-Its a bit over-engineered for my liking, and I feel like they could have just made the glass and shell one piece. To the point, I think it's a bit few too many steps to put together for some brand new vapor.
-For those that like that metal drip tip, I think you'll like it. It's actually really nice, and improves the throat hit compared to the original shorter N2 tip that I'm mainly using. Not sure why, but something about that longer tip does improve it. It's a bummer since I don't like metal in my mouth, but if that doesn't bother you, you'll dig it.
-Once you unscrew the top, which then allows you to slide open it- it's pretty firm. Not too firm, but I feel like the whole unscrewing thing is another reason I mention over-engineering. Seems like it could have been made more simple with just a slide. But it works well, and I bet I'll get used to it.
-A couple little annoyances have come up with the airflow ring; on the original Pico (which it does fit on) it doesn't seem to sit down quite tight enough all the time, and gets slightly misaligned.. Because of that, the airflow ring leaves a tiny slit/gap above it. Hard to explain, but since I like such a tight draw at the smallest hole, that slight gab sort of kills it, and I have to adjust it. But it may just be my tank, or the Pico, since I just slapped it on a mini mod and it's fine on here. So just an fyi to watch out for.
-I'll eventually try out the subohm coil, but not anytime soon, I'll defer to some other brave soul to try that
Can't think of anything else at the moment, but will update as I do. Overall, a good upgrade for those that don't mind some tinkering.