The Darwin is the best PV out there. It does VW and the battery last for days. The battery indicator is amazing.
I have used the mod for almost a year and I can say it is the best mod in the market even though I no longer have mine. I like to vape at at least twice he wattage limit and my hydrocephalous is not getting better so I am sending it to a fellow vapor today.
It is always sold out and expensive. But worth it and more.
Right now it has a surge tank on it. Making it a bottom feeder. It looks funny but it is amazing. I highly recommend it.
The drip tip is a pyrex dt from theecig. It shows when an atty is about to die. I cycle them when they are about to die. These last two 306 atties are cisco but using that trick they have so far survived over 2 months at extremely high wattage which is great. I can't recommend the ecig dt because although this one is perfect the I06 ones I got do not fit like this. Will make another video about them if you want.
The Darwin can change Wattage on the fly. You can find the flavor you want for the juice with out pressing a lot of buttons, changing batteries, or atties.
It still charges open. the slight change in light that is how you know it is charging.
It closes like this.
(LOL need to get this video up)
It is not perfect there is an opening so juice can get into the insides. The customer service at Evolv is amazing. Send them a email and they get back with in the hour. It took less then a week to get the unit back each time I sent it. Last time they totally replaced the unit. A new screen internals and batteries. I have only used the unit for doing reviews since I got it but I have not had a problem with it. I think V2 with blue screen is perfect.
I just wish the Variable Watts could go alot higher. I think after vaping for almost a year and a half I might have graduated passed it. But if you vape at under 12.7 watts you could not have a better unit.
I highly recommend the Darwin. The unit works great. The customer service is out of this world. I am waiting patently to see what Evolv does next.
You can read juice reviews that I did with Variable Wattages at my site
(this is a rough transcript. Still working on it. Sorry if it is hard to read)