I have multiple mods and it really is a question of taste/style in general.
Note that with 2 batteries, most dual may feel heavy at first.
I'll cut and paste a reply I did for another thread and make some adjustments to answer you better:
I will not say get a DNA, I have a Lost Vape Therion and while it a very nice mod, I found that to get the DNA chip to work right, it was a LOT of headaches as it simply was not even close to workable out of the box. Took me days to set it up to an acceptable range (for TC). For the price they demand, I simply don't believe them to be worth it unless you get a great deal (under 100$) and ready to learn and mess a lot with it to get it working right.
My favourite mod is still the Eleaf TC100W after over a year, after getting and testing a few other dual mods... and I've got a few that are a good year old (or more) and still works great.
Why is it my favourite?
- Crazy inexpensive
- Solid like a rock, my wife and daughter have dropped theirs so many times that while the paint has ended up all chipped, I've seen worse from other people dropping their other mods a just a few times.
- Very comfortable in hand
- Sleak, fits my back pocket very well
- Squeeze trigger, it's solid, firm, quality, even on my oldest one it's still solid and tight
- Magnetic doors
- Parallel mod, one of the very rare mods that is a parallel
- Thanks to being parallel or just the chip/board, it's extremely efficient . It's my longest lasting mod, easily 30% longer life from all my other dual battery mods that are all series.
- Easiest mod for settings, 3 button interface, no need to triple click the firing button, etc.
- 510 connector is rock solid, oldest one is still as new, only one tank had a 510 pin that was too long for it and it wobbled a bit, fixed by putting a easily made rubber "washer" (make by cutting some plumber's thick rubber self-sealing tape)between them.
- Actual mechanical lock
- Temp control has been excellent on it
- Firmware takes it from 100W to 120W
- Charging via USB has been flawless, I've checked the batteries after months of charging with the mod and they all came out perfectly married
Between my multiple mods, I just keep going back to my TC100Ws.
It's only "flaw", any tank that's over 23mm with have some overhang due to it being very slim.