Ok, a short review:
The unit is BIG, fit my big hands nicely, the interior is well laid out and neat, wiring is top notch. The case is a tad rough with the anodizing, not 100% smooth, I can see tooling marks and grind marks below the anodizing. The screws on the case cover are beefy and made of hardened steel.
It would be nice if they were magnets since you can't charge the 100W via the USB, that's for firmware updates only. Batteries are in series. There's no battery venting holes, the case cover has a bit of a gap on the top and bottom which serves that purpose.
The fire button is a big ss clicky horn button. The watts up and down are those freaking bb type switches (don't like em personally). It's a heavy fucker, not for carrying around, it's also built like a freaking tank, thick and very solid aluminum. You could probably run this over with a car and have it still work. That Fat Daddy spring loaded 510 has fit very atty I've tried.
The updated V2 SX350 performs really well and is spot on accurate, I mean really, really accurate with voltage output under load. Matches up perfectly with an Ohm's law calculator. Resistance is calculated correctly as is displayed watts, volts and battery life. The battery life at 60 watts with a .5 Ohm Vapewell Dripper is better than the same Dripper setup on the Sig 100W by about 30%. There is zero firing lag or warm up time with this mod, compared to the Sig 100W. It appears to be a flat DC signal, not pwm.
I've set up the memory functions m1-m5 with different watts, they are saved after changing out the batteries.
Overall I really like it with the exception of not having a magnetic case cover, but I can fix that myself. The warranty is really good (1 year) and Jordan (the mod maker) is really responsive to questions and is helpful.
This mod is pricey, but worth it in my mind. I'll be using this thing when the other stuff I have dies off. If you get one, I don't think you'll be disappointed.
Disclaimer: I bought this mod for myself, I don't get vape gear for free, just not that popular with the "in crowd" I guess
. Never got invited to China to hobnob with the big boys. My views are mine alone.