Well I haven't had a lot of time with it yet. Things I can say:
-form factor is pretty good...and having a top cap that won't come off is great
-A screw on
tank is a little inconvenient. But these are the sacrifices you make for a very portable PV.
The PV and finish seem very solid, but I need some more time to tell. I run my iHybrid in 18350 mode also, and I installed the exact same set up on the sidewinder. With my iHybrid when I dry burn for more than a couple seconds the wick will be glowing. This was not the case with the sidewinder...but it may be user error. I'm sure I will be able to mess with it some tonight and learn a little more about it.