You will see some differences if you look for them.
Specifically, a DNA device will fast-track a temperature setting all over the adjustable range; power drive will vary rapidly as you draw the Vapour, to keep the temperature constant. The whole behavior of power delivery will adjust on how well the wick of your RTA deploys the e-liquid to the coil. If you drip, you'll come to love it.
One important note.
The entire functionality of DNA hardware / software system become useless if your 510 connector isn't of top quality.
I don't want to point at brand names, but I have seen some cheap DNA devices which use a connector that, in my view, is not up to the task.
Lost Vape maybe charging an arm and a leg for their devices, but their 510 connectors are proper and fit for purpose (... the one on the Therion being somewhat better than the 510 on the Paranormal...), in the sense they do not introduce random resistance variations and casual thermoelectric offsets which impair correct TC operations on more easygoing devices.
This said, I believe you are not overpaying for DNA and other professional devices, because you are purchasing "precision" - which involves - on the part of designers and manufacturers - a lot of thought before do.
Precision which is not immediately evident, and will show only if you are seeking for dependable and repeatable temperature control operations of your vaping device.