That's an impressive voltage range. Though, I don't know how useful it is to run a higher resistance atomizer up that high. Most of the people that would be interested in a unit like this are using rebuildables which tend to run lower resistance. Though, my understanding is they are targetting this controller to 3rd party manufacturers. In that case, people buying those devices would tend to use cartomizers and other non-rebuildables in the higher resistance ranges.
The DNA20 would be the only electronics I've seen able to output voltage high enough to run a 3 Ohm atomizer up to 20 Watts. However, I have yet to see a non-rebuildable that can handle much more than 12 Watts. You can coil a rebuildable to handle whatever wattage you want, but it's going to be under 2 Ohms for sure. So, I don't know how much of a valued feature that wide voltage range is going to be.